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Document and Entity Information - shares	3 Months Ended
Document and Entity Information - shares	Mar. 31, 2016	Apr. 30, 2016
Document Information [Line Items]
Entity Registrant Name	CLEARONE INC
Document Type	10-Q
Document Period End Date	Mar. 31, 2016
Amendment Flag	false
Entity Central Index Key	0000840715
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		9,253,578
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1

Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 13,913	$ 13,412
Marketable securities	5,890	7,161
Receivables, net of allowance for doubtful accounts of $77 and $54, respectively	8,133	8,692
Inventories	14,470	13,447
Distributor channel inventories	1,445	1,628
Prepaid expenses and other assets	2,427	1,806
Total current assets	46,278	46,146
Long-term marketable securities	20,347	19,204
Long-term inventories, net	2,021	2,018
Property and equipment, net	1,468	1,589
Intangibles, net	6,368	6,638
Goodwill	12,724	12,724
Deferred income taxes	5,020	5,093
Other assets	127	117
Total assets	94,353	93,529
Current liabilities:
Accounts payable	4,195	2,815
Accrued liabilities	2,144	2,243
Deferred product revenue	4,203	4,549
Total current liabilities	10,542	9,607
Deferred rent	154	150
Other long-term liabilities	1,152	1,203
Total liabilities	11,848	10,960
Shareholders' equity:
Common stock, par value $0.001, 50,000,000 shares authorized, 9,219,978 and 9,183,957 shares issued and outstanding	9	9
Additional paid-in capital	45,568	46,291
Accumulated other comprehensive (loss)	(12)	(166)
Retained earnings	36,940	36,435
Total shareholders' equity	82,505	82,569
Total liabilities and shareholders' equity	$ 94,353	$ 93,529

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Allowance for doubtful accounts	$ 77	$ 54
Common Stock:
Par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, sharse issued (in shares)	9,219,978	9,183,957
Common stock, shares outstanding (in shares)	9,219,978	9,183,957

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue	$ 13,033	$ 13,586
Cost of goods sold	4,568	5,124
Gross profit	8,465	8,462
Operating expenses:
Sales and marketing	2,625	2,622
Research and product development	2,270	1,941
General and administrative	1,598	2,000
Total operating expenses	6,493	6,563
Operating income	1,972	1,899
Other income, net	11	104
Income before income taxes	1,983	2,003
Provision for income taxes	615	731
Net income	$ 1,368	$ 1,272
Basic earnings per common share	$ 0.15	$ 0.14
Diluted earnings per common share	$ 0.14	$ 0.13
Basic weighted average shares outstanding	9,196,522	9,100,107
Diluted weighted average shares outstanding	9,513,440	9,508,479
Other comprehensive income:
Unrealized gain on available-for-sale securities, net of tax	$ 121	$ 55
Change in foreign currency translation adjustment	33	(180)
Comprehensive income	$ 1,522	$ 1,147

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities:
Net income	$ 1,368	$ 1,272
Adjustments to reconcile net income to net cash provided by operations:
Depreciation and amortization expense	483	521
Amortization of deferred rent	(20)	(23)
Stock-based compensation expense	148	238
Provision for doubtful accounts, net	25	21
Write-down of inventory to net realizable value	119	47
Loss on disposal of assets	49	0
Tax benefit from exercise of stock options	(583)	(7)
Deferred income taxes	(47)	0
Changes in operating assets and liabilities:
Receivables	562	1,205
Inventories	(964)	(806)
Prepaid expenses and other assets	(144)	877
Accounts payable	1,378	820
Accrued liabilities	(82)	(832)
Income taxes payable	106	338
Deferred product revenue	(354)	(291)
Other long-term liabilities	(52)	(537)
Net cash provided by operating activities	2,086	2,843
Cash flows from investing activities:
Purchase of property and equipment	(139)	(76)
Proceeds from maturities and sales of marketable securities	2,787	2,376
Purchases of marketable securities	(2,538)	(1,612)
Net cash provided by investing activities	110	688
Cash flows from financing activities:
Proceeds from the exercise of stock options	318	20
Repurchase and cancellation of stock options	(1,752)	0
Tax benefit from exercise of stock options	583	7
Dividends paid	(459)	0
Repurchase and cancellation of stock	(404)	0
Net cash (used in) provided by financing activities	(1,714)	27
Effect of exchange rate changes on cash and cash equivalents	19	(133)
Net increase in cash and cash equivalents	501	3,425
Cash and cash equivalents at the beginning of the period	13,412	7,440
Cash and cash equivalents at the end of the period	13,913	10,865
Supplemental disclosure of cash flow information:
Cash paid for income taxes	$ 537	$ 881

Business Description, Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2016

Accounting Policies [Abstract]

Business Description, Basis of Presentation and Significant Accounting Policies


1.	Business Description, Basis of Presentation and Significant Accounting Policies

Business Description:

ClearOne, Inc. together with its subsidiaries (collectively, “ClearOne” or the “Company”) is a global company that designs, develops and sells conferencing, collaboration, streaming and digital signage solutions for audio and visual communications. The performance and simplicity of its advanced comprehensive solutions offer unprecedented levels of functionality, reliability and scalability.

Basis of Presentation:

The fiscal year for ClearOne is the 12 months ending on December 31^st. The consolidated financial statements include the accounts of ClearOne and its subsidiaries. All significant inter-company accounts and transactions have been eliminated.

These accompanying interim condensed consolidated financial statements for the three months ended March 31, 2016 and 2015, have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”) and are not audited. Certain information and footnote disclosures that are usually included in financial statements prepared in accordance with generally accepted accounting principles in the United States (“GAAP”) have been either condensed or omitted in accordance with SEC rules and regulations. The accompanying condensed consolidated financial statements contain all adjustments, consisting of normal recurring accruals, necessary for a fair presentation of our financial position as of March 31, 2016 and December 31, 2015, the results of operations for the three months ended March 31, 2016 and 2015, and the statements of cash flows for the three months ended March 31, 2016 and 2015. The results of operations for the three months ended March 31, 2016 and 2015 are not necessarily indicative of the results for a full-year period. These interim condensed consolidated financial statements should be read in conjunction with the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2015 filed with the SEC.

Significant Accounting Policies:

The significant accounting policies were described in Note 1 to the audited consolidated financial statements included in the Company’s annual report on Form 10-K for the year ended December 31, 2015. There have been no changes to these policies during the three months ended March 31, 2016 that are of significance or potential significance to the Company.

Recent Accounting Pronouncements:

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), requiring an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The updated standard will replace most existing revenue recognition guidance in U.S. GAAP when it becomes effective and permits the use of either a full retrospective or retrospective with cumulative effect transition method. Early adoption is not permitted. The updated standard becomes effective for the Company on January 1, 2017. The Company has not yet selected a transition method and is currently evaluating the effect that the updated standard will have on the consolidated financial statements.

In November 2015, the FASB issued ASU 2015-17, Income Taxes (Topic 740), simplifying the presentation of deferred taxes on the balance sheet by requiring companies to classify everything as either a non-current asset or non-current liability. Early adoption of this ASU is permitted. ClearOne has adopted this standard update early as it would simplify the presentation of taxes on the balance sheet and within the income tax footnote.

In February 2016, FASB released Accounting Standards Update No. 2016-02, Leases (Topic 842) to bring transparency to lessee balance sheets. The ASU will require organizations that lease assets (lessees) to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases with terms of more than 12 months. The standard will apply to both types of leases-capital (or finance) leases and operating leases. Previously, GAAP has required only capital leases to be recognized on lessee balance sheets. The standard will take effect the Company for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018. Early application will be permitted for all organizations. The Company has not yet selected a transition method and is currently evaluating the effect that the updated standard will have on the consolidated financial statements.

In March 2016, the FASB issued ASU 2016-09, Compensation - Stock Compensation: Improvements to Employee Shared-Based Payment Accounting. The standard is intended to simplify several areas of accounting for share-based compensation arrangements, including the income tax impact, classification on the statement of cash flows and forfeitures. ASU 2016-09 is effective for the Company on January 1, 2017. The Company is currently evaluating the impact that ASU 2016-09 will have on the consolidated financial statements.

Earnings Per Share

3 Months Ended

Mar. 31, 2016

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table sets forth the computation of basic and diluted earnings per common share:



	Three months ended March 31,
	2016		2015
Numerator:
Net income	$	1,368	$	1,272
Denominator:
Basic weighted average shares outstanding	9,196,522		9,100,107
Dilutive common stock equivalents using treasury stock method	316,918		408,372
Diluted weighted average shares outstanding	9,513,440		9,508,479

Basic earnings per common share	$	0.15	$	0.14
Diluted earnings per common share	$	0.14	$	0.13

Weighted average options outstanding	1,000,571		1,037,137
Anti-dilutive options not included in the computations	289,623		268,709

Marketable Securities

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

The Company has classified its marketable securities as available-for-sale securities. These securities are carried at estimated fair value with unrealized holding gains and losses included in accumulated other comprehensive income/loss in stockholders' equity until realized. Gains and losses on marketable security transactions are reported on the specific-identification method. Dividend and interest income are recognized when earned.

The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at March 31, 2016 and December 31, 2015 were as follows:



			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
March 31, 2016
	Available-for-sale securities:
		Corporate bonds and notes	$	19,422	$	136	$	(52	)	$	19,506
		Municipal bonds	6,691		41		(1		)	6,731
	Total available-for-sale securities		$	26,113	$	177	$	(53	)	$	26,237



			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
December 31, 2015
	Available-for-sale securities:
		Corporate bonds and notes	$	20,827	$	50	$	(133	)	$	20,744
		Municipal bonds	5,608		18		(5		)	5,621
	Total available-for-sale securities		$	26,435	$	68	$	(138	)	$	26,365

Maturities of marketable securities classified as available-for-sale securities were as follows at March 31, 2016:



		Amortized cost		Estimated fair value
March 31, 2016
	Due within one year	$	5,881	$	5,890
	Due after one year through five years	19,247		19,365
	Due after five years through ten years	985		982
	Total available-for-sale securities	$	26,113	$	26,237

Debt securities in an unrealized loss position as of March 31, 2016 were not deemed impaired at acquisition and subsequent declines in fair value are not deemed attributed to declines in credit quality. Management believes that it is more likely than not that the securities will receive a full recovery of par value. The available-for-sale marketable securities in a gross unrealized loss position as of March 31, 2016 are summarized as follows:



	Less than 12 months					More than 12 months					Total
(In thousands)	Estimated fair value		Gross unrealized holding losses			Estimated fair value		Gross unrealized holding losses			Estimated fair value		Gross unrealized holding losses
As of March 31, 2016
Corporate bonds and notes	$	3,416	$	(38	)	$	1,644	$	(14	)	$	5,060	$	(52	)
Municipal bonds	—		—			200		(1		)	200		(1		)

	$	3,416	$	(38	)	$	1,844	$	(15	)	$	5,260	$	(53	)

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References + Details

Inventories

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Inventories

Inventories, net of reserves, as of March 31, 2016 and December 31, 2015 consisted of the following:



	March 31, 2016		December 31, 2015
Current:
Raw materials	$	3,404	$	2,735
Finished goods	11,066		10,712
	$	14,470	$	13,447
Long-term:
Raw materials	$	438	$	375
Finished goods	1,583		1,643
	$	2,021	$	2,018

Long-term inventory represents inventory held in excess of our current (next 12 months) requirements based on our recent sales and forecasted level of sales. We expect to sell the above inventory, net of reserves, at or above the stated cost and believe that no loss will be incurred on its sale.

Current finished goods do not include distributor channel inventories in the amounts of approximately $1,445 and $1,628 as of March 31, 2016 and December 31, 2015, respectively. Distributor channel inventories represent inventory at distributors and other customers where revenue recognition criteria have not yet been achieved.

The following table summarizes the losses incurred on valuation of inventory at lower of cost or market value and write-off of obsolete inventory during the three months ended March 31, 2016 and 2015, respectively.



	Three months ended March 31,
	2016		2015
Net loss (gain) on valuation of inventory and write-off of obsolete inventory	$	119	$	47

Share-Based Payments

3 Months Ended

Mar. 31, 2016

Shareholders' Equity and Share-based Payments [Abstract]

Share-Based Compensation

Share-based Compensation

Employee Stock Option Plans

The Company’s share-based incentive plans offering stock options primarily consists of two plans. Under both plans, one new share is issued for each stock option exercised. The plans are described below.

The Company’s 1998 Incentive Plan (the “1998 Plan”) was the Company's primary plan through November 2007. Under this plan shares of common stock was made available for issuance to employees and directors. Through December 1999, 1,066,000 options were granted that would cliff vest after 9.8 years; however, such vesting was accelerated for 637,089 of these options upon meeting certain earnings per share goals through the fiscal year ended June 30, 2003. Subsequent to December 1999 and through June 2002, 1,248,250 options were granted that would cliff vest after 6.0 years; however, such vesting was accelerated for 300,494 of these options upon meeting certain earnings per share goals through the fiscal year ended June 30, 2005.

The Company's 2007 Equity Incentive Plan (the “2007 Plan”) was restated and approved by the shareholders on December 12, 2014. Provisions of the restated 2007 Plan include the granting of up to 2,000,000 incentive and non-qualified stock options, stock appreciation rights, restricted stock and restricted stock units. Options may be granted to employees, officers, non-employee directors and other service providers and may be granted upon such terms as the Compensation Committee of the Board of Directors determines in their sole discretion.

Of the options granted subsequent to June 2002, all vesting schedules are based on 3 or 4-year vesting schedules, with either one-third or one-fourth vesting on the first anniversary and the remaining options vesting ratably over the remainder of the vesting term. Generally, directors and officers have 3-year vesting schedules and all other employees have 4-year vesting schedules. Additionally, in the event of a change in control or the occurrence of a corporate transaction, the Company’s Board of Directors has the authority to elect that all unvested options shall vest and become exercisable immediately prior to the event or closing of the transaction. All options outstanding as of March 31, 2016 had contractual lives of ten years. Under the 1998 Plan, 2,500,000 shares were authorized for grant. As of March 31, 2016, there were 177,000 options outstanding under the 1998 Plan, which includes the cliff vesting and 3 or 4-year vesting options discussed above. As of March 31, 2016, there were 712,992 options outstanding under the 2007 Plan. As of March 31, 2016, the 2007 Plan had 893,698 authorized unissued options, while there were no options remaining that could be granted under the 1998 Plan.

A summary of the stock option activity under the Company’s plans for the three months ended March 31, 2016 is as follows:



	Number of shares	Weighted average exercise price
Options outstanding at beginning of quarter	1,028,935	$6.03
Granted	157,200	11.97
Less:
Exercised	(69,621)	4.21
Repurchased	(225,542)	4.37
Canceled or Expired	(980)	8.51
Options outstanding at end of quarter	889,992	7.64
Options exercisable at end of quarter	550,097	$5.64

As of March 31, 2016, the total remaining unrecognized compensation cost related to non-vested stock options, net of forfeitures, was approximately $340, which will be recognized over a weighted average period of 2.57 years.

Stock Option Repurchase: From March 11, 2016 to March 17, 2016, the Company offered to repurchase eligible vested options to purchase shares under the 1998 Plan and the 2007 Plan from employees. The Company repurchased delivered options at a repurchase price equal to the difference between the closing market price on the date of the employee’s communication of accepting the repurchase offer and the exercise price of such employee’s delivered options, subject to applicable withholding taxes and charges. The Company repurchased 225,542 stock options from employees at an average purchase price of $7.77.

Employee Stock Purchase Plan

The Company issues shares to employees under the Company's 2014 Employee Stock Purchase Plan (the "ESPP"). The ESPP was approved by the Company’s shareholders on December 12, 2014. As of March 31, 2016, 485,033 of the originally approved 500,000 shares were available for offerings under the ESPP. Offering periods under the ESPP commence on each Jan 1 and July 1, and continue for a duration of six months. The ESPP is available to all employees who do not own, or are deemed to own, shares of stock making up an excess of 5% of the combined voting power of the Company, its parent or subsidiary. During each offering period, each eligible employee may purchase shares under the ESPP after authorizing payroll deductions. Under the ESPP, each employee may purchase up to the lesser of 2,500 shares or $25 of fair market value (based on the established purchase price) of the Company's stock for each offering period. Unless the employee has previously withdrawn from the offering, his or her accumulated payroll deductions will be used to purchase common stock on the last business day of the period at a price equal to 85% (or a 15% discount) of the fair market value of the common stock on the first or last day of the offering period, whichever is lower.

Share-based compensation expense has been recorded as follows:



	Three months ended March 31,
	2016		2015
Cost of goods sold	$	4	$	5
Sales and marketing	14		40
Research and product development	27		33
General and administrative	103		160
	$	148	$	238

Shareholders' Equity

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Shareholders' Equity

Shareholders’ Equity

The following table summarizes the change in shareholders’ equity during the three months ended March 31, 2016 and 2015, respectively:



	Three months ended March 31,
	2016			2015
Balance at the beginning of the period	$	82,569		$	76,016
Exercise of stock options	293			20
Stock repurchased	(404		)	—
Options repurchased	(1,752		)	—
Proceeds from stock purchase plan	25			—
Dividends	(459		)	(319		)
Share-based compensation - options	143			238
Share-based compensation - ESPP	5			—
Tax benefit - stock option exercises	563			7
Unrealized gain or loss on investments, net of tax	121			55
Foreign currency translation adjustment	33			(180		)
Net Income during the period	1,368			1,272
Balance at end of the period	$	82,505		$	77,109

On February 25, 2016, the Company announced a quarterly cash dividend of $0.05 per share to be paid on March 18, 2016 to shareholders of record as of March 7, 2016.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Paragraph 1
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Reference 9: http://www.xbrl.org/2003/role/presentationRef
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=6521494

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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-Number Topic 4
-Section E

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 4
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+ Details

Fair Value Measurements

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Fair Value Measurements

The fair value of the Company's financial instruments reflects the amounts that the Company estimates it will receive in connection with the sale of an asset or pay in connection with the transfer of a liability in an orderly transaction between market participants at the measurement date (exit price). The fair value hierarchy prioritizes the use of inputs used in valuation techniques into the following three levels:

Level 1 - Quoted prices in active markets for identical assets and liabilities.

Level 2 - Observable inputs other than quoted prices in active markets for identical assets and liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities. This category generally includes U.S. Government and agency securities; municipal securities; mutual funds and securities sold and not yet settled.

Level 3 - Unobservable inputs.

The substantial majority of the Company’s financial instruments are valued using quoted prices in active markets or based on other observable inputs. The following table sets forth the fair value of the financial instruments re-measured by the Company as of March 31, 2016 and December 31, 2015:



		Level 1		Level 2		Level 3		Total
March 31, 2016
Corporate bonds and notes		$	—	$	19,506	$	—	$	19,506
Municipal bonds		—		6,731		—		6,731
	Total	$	—	$	26,237	$	—	$	26,237



		Level 1		Level 2		Level 3		Total
December 31, 2015
Corporate bonds and notes		$	—	$	20,744	$	—	$	20,744
Municipal bonds		—		5,621		—		5,621
	Total	$	—	$	26,365	$	—	$	26,365

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Income Taxes	3 Months Ended
Income Taxes	Mar. 31, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company's forecasted effective tax rate at March 31, 2016 is 35.2%, a 0.6% decrease from the 35.8% effective tax rate recorded at December 31, 2015. The forecasted effective tax rate of 35.2% excludes jurisdictions for which no benefit from forecasted current year losses is anticipated. Including losses from such jurisdictions results in a forecasted effective tax rate of 35.5%. Our forecasted effective tax rate could fluctuate significantly on a quarterly basis and could change, to the extent that earnings in countries with tax rates that differ from that of the U.S. differ, from amounts anticipated at March 31, 2016. After discrete tax benefit of $93, the effective tax rate for the quarter ended March 31, 2016 is 31.3%. The discrete tax benefit is primarily attributable to tax benefit related to stock-based compensation.

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2016
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Events The Company evaluated its consolidated financial statements as of and for the three months ended March 31, 2016 for subsequent events through the date the financial statements were issued. The Company is not aware of any subsequent event which would require recognition or disclosure in the financial statements.

Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2016

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table sets forth the computation of basic and diluted earnings per common share:



	Three months ended March 31,
	2016		2015
Numerator:
Net income	$	1,368	$	1,272
Denominator:
Basic weighted average shares outstanding	9,196,522		9,100,107
Dilutive common stock equivalents using treasury stock method	316,918		408,372
Diluted weighted average shares outstanding	9,513,440		9,508,479

Basic earnings per common share	$	0.15	$	0.14
Diluted earnings per common share	$	0.14	$	0.13

Weighted average options outstanding	1,000,571		1,037,137
Anti-dilutive options not included in the computations	289,623		268,709

Marketable Securities (Tables)

3 Months Ended

Mar. 31, 2016

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities Reconciliation



			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
March 31, 2016
	Available-for-sale securities:
		Corporate bonds and notes	$	19,422	$	136	$	(52	)	$	19,506
		Municipal bonds	6,691		41		(1		)	6,731
	Total available-for-sale securities		$	26,113	$	177	$	(53	)	$	26,237



			Amortized cost		Gross unrealized holding gains		Gross unrealized holding losses			Estimated fair value
December 31, 2015
	Available-for-sale securities:
		Corporate bonds and notes	$	20,827	$	50	$	(133	)	$	20,744
		Municipal bonds	5,608		18		(5		)	5,621
	Total available-for-sale securities		$	26,435	$	68	$	(138	)	$	26,365

Maturities of marketable securities classified as available-for-sale securities were as follows at March 31, 2016:



		Amortized cost		Estimated fair value
March 31, 2016
	Due within one year	$	5,881	$	5,890
	Due after one year through five years	19,247		19,365
	Due after five years through ten years	985		982
	Total available-for-sale securities	$	26,113	$	26,237

Available-for-sale Securities

The available-for-sale marketable securities in a gross unrealized loss position as of March 31, 2016 are summarized as follows:



	Less than 12 months					More than 12 months					Total
(In thousands)	Estimated fair value		Gross unrealized holding losses			Estimated fair value		Gross unrealized holding losses			Estimated fair value		Gross unrealized holding losses
As of March 31, 2016
Corporate bonds and notes	$	3,416	$	(38	)	$	1,644	$	(14	)	$	5,060	$	(52	)
Municipal bonds	—		—			200		(1		)	200		(1		)

	$	3,416	$	(38	)	$	1,844	$	(15	)	$	5,260	$	(53	)

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details

Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2016

Finite-Lived Intangible Assets [Line Items]

Intangible Assets Disclosure [Text Block]

Intangible Assets

Intangible assets as of March 31, 2016 and December 31, 2015 consisted of the following:



	Estimated useful lives	March 31, 2016			December 31, 2015
Tradename	7 years	$	555		$	555
Patents and technological know-how	10 years	5,869			5,850
Proprietary software	3 to 15 years	4,341			4,341
Other	5 years	324			324
		11,089			11,070
Accumulated amortization		(4,721		)	(4,432		)
		$	6,368		$	6,638

The amortization of intangible assets for the three months ended March 31, 2016 and March 31, 2015 was as follows:



	Three months ended March 31,
	2016		2015
Amortization of intangible assets	$	289	$	315

The estimated future amortization expense of intangible assets is as follows:



Years ending December 31,
2016 (remainder)	$	831
2017	925
2018	851
2019	778
2020	600
Thereafter	2,383
	$	6,368

Schedule of Intangible Assets

Intangible assets as of March 31, 2016 and December 31, 2015 consisted of the following:



	Estimated useful lives	March 31, 2016			December 31, 2015
Tradename	7 years	$	555		$	555
Patents and technological know-how	10 years	5,869			5,850
Proprietary software	3 to 15 years	4,341			4,341
Other	5 years	324			324
		11,089			11,070
Accumulated amortization		(4,721		)	(4,432		)
		$	6,368		$	6,638

Schedule of Estimated Future Amortization Expense of Intangible Assets

The estimated future amortization expense of intangible assets is as follows:



Years ending December 31,
2016 (remainder)	$	831
2017	925
2018	851
2019	778
2020	600
Thereafter	2,383
	$	6,368

Inventories (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of inventory, net of reserves

Inventories, net of reserves, as of March 31, 2016 and December 31, 2015 consisted of the following:



	March 31, 2016		December 31, 2015
Current:
Raw materials	$	3,404	$	2,735
Finished goods	11,066		10,712
	$	14,470	$	13,447
Long-term:
Raw materials	$	438	$	375
Finished goods	1,583		1,643
	$	2,021	$	2,018

Schedule of Non-Current Inventory Valuation Losses



	Three months ended March 31,
	2016		2015
Net loss (gain) on valuation of inventory and write-off of obsolete inventory	$	119	$	47

Share-Based Payments (Tables)

3 Months Ended

Mar. 31, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Share-based compensation expense has been recorded as follows:



	Three months ended March 31,
	2016		2015
Cost of goods sold	$	4	$	5
Sales and marketing	14		40
Research and product development	27		33
General and administrative	103		160
	$	148	$	238

A summary of the stock option activity under the Company’s plans for the three months ended March 31, 2016 is as follows:



	Number of shares	Weighted average exercise price
Options outstanding at beginning of quarter	1,028,935	$6.03
Granted	157,200	11.97
Less:
Exercised	(69,621)	4.21
Repurchased	(225,542)	4.37
Canceled or Expired	(980)	8.51
Options outstanding at end of quarter	889,992	7.64
Options exercisable at end of quarter	550,097	$5.64

Share-based Compensation Stock Option Rollforward (Tables)

3 Months Ended

Mar. 31, 2016

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Share-based compensation expense has been recorded as follows:



	Three months ended March 31,
	2016		2015
Cost of goods sold	$	4	$	5
Sales and marketing	14		40
Research and product development	27		33
General and administrative	103		160
	$	148	$	238

A summary of the stock option activity under the Company’s plans for the three months ended March 31, 2016 is as follows:



	Number of shares	Weighted average exercise price
Options outstanding at beginning of quarter	1,028,935	$6.03
Granted	157,200	11.97
Less:
Exercised	(69,621)	4.21
Repurchased	(225,542)	4.37
Canceled or Expired	(980)	8.51
Options outstanding at end of quarter	889,992	7.64
Options exercisable at end of quarter	550,097	$5.64

Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2016

Stockholders' Equity Note [Abstract]

Schedule of Shareholders' Equity

The following table summarizes the change in shareholders’ equity during the three months ended March 31, 2016 and 2015, respectively:



	Three months ended March 31,
	2016			2015
Balance at the beginning of the period	$	82,569		$	76,016
Exercise of stock options	293			20
Stock repurchased	(404		)	—
Options repurchased	(1,752		)	—
Proceeds from stock purchase plan	25			—
Dividends	(459		)	(319		)
Share-based compensation - options	143			238
Share-based compensation - ESPP	5			—
Tax benefit - stock option exercises	563			7
Unrealized gain or loss on investments, net of tax	121			55
Foreign currency translation adjustment	33			(180		)
Net Income during the period	1,368			1,272
Balance at end of the period	$	82,505		$	77,109

On February 25, 2016, the Company announced a quarterly cash dividend of $0.05 per share to be paid on March 18, 2016 to shareholders of record as of March 7, 2016.

Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

The following table sets forth the fair value of the financial instruments re-measured by the Company as of March 31, 2016 and December 31, 2015:



		Level 1		Level 2		Level 3		Total
March 31, 2016
Corporate bonds and notes		$	—	$	19,506	$	—	$	19,506
Municipal bonds		—		6,731		—		6,731
	Total	$	—	$	26,237	$	—	$	26,237



		Level 1		Level 2		Level 3		Total
December 31, 2015
Corporate bonds and notes		$	—	$	20,744	$	—	$	20,744
Municipal bonds		—		5,621		—		5,621
	Total	$	—	$	26,365	$	—	$	26,365

Marketable Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	$ 26,113	$ 26,435
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	177	68
Gross unrealized holding losses	(53)	(138)
Estimated fair value	26,237	26,365
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	19,422	20,827
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	136	50
Gross unrealized holding losses	(52)	(133)
Estimated fair value	19,506	20,744
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized cost	6,691	5,608
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	41	18
Gross unrealized holding losses	(1)	(5)
Estimated fair value	$ 6,731	$ 5,621

Marketable Securities - Available-for-sale Securities (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	$ 177	$ 68
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(53)	(138)
Due within one year, Amortized Cost	5,881
Due within one year, Estimated fair value	5,890
Due after one year through five years, Amortized Cost	19,247
Due after one year through five years, Estimated fair value	19,365
Due after five years through ten years, Amortized Cost	985
Due after five years through ten years, Estimated fair value	982
Total available-for-sale securities, Amortized Cost	26,113	26,435
Total available-for-sale securities, Estimated fair value	26,237	26,365
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	136	50
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(52)	(133)
Total available-for-sale securities, Amortized Cost	19,422	20,827
Total available-for-sale securities, Estimated fair value	19,506	20,744
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax	41	18
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax	(1)	(5)
Total available-for-sale securities, Amortized Cost	6,691	5,608
Total available-for-sale securities, Estimated fair value	$ 6,731	$ 5,621

Business Combination, Goodwill and Intangibles - Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Total finite and indefinite-lived intangible assets, gross	$ 11,089		$ 11,070
Accumulated amortization	(4,721)		(4,432)
Intangible assets, net (excluding goodwill)	6,368		6,638
Amortization of Intangible Assets	$ 289	$ 315
Tradename
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	7 years
Finite-lived intangible assets, gross	$ 555		555
Patents and technological know-how
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, gross	5,869		5,850
Proprietary Software [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, gross	$ 4,341		4,341
Other
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	5 years
Finite-lived intangible assets, gross	$ 324		$ 324
Minimum [Member] \| Computer Software, Intangible Asset [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	3 years
Minimum [Member] \| Tradename
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	5 years
Maximum [Member] \| Computer Software, Intangible Asset [Member]
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived intangible assets, useful life (in years)	15 years

Intangible Assets Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
2016 (remainder)	$ 831
2017	925
2018	851
2019	778
2020	600
Thereafter	2,383
Finite-Lived Intangible Assets, Net	$ 6,368
Computer Software, Intangible Asset [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (in years)	3 years
Computer Software, Intangible Asset [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (in years)	15 years
Tradename
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (in years)	7 years
Tradename \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (in years)	5 years
Other Intangible Assets [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (in years)	3 years
Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, useful life (in years)	5 years

Inventories (Details) - USD ($) $ in Thousands	3 Months Ended
Inventories (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Inventory [Line Items]
Distributor channel inventories	$ 1,445		$ 1,628
Losses incurred on valuation of inventory and write-off of obsolete inventory	119	$ 47
Current:
Raw materials	3,404		2,735
Finished goods	11,066		10,712
Inventoryincludingdistributorchannelinventories,net	14,470		13,447
Long-term:
Raw materials	438		375
Finished Goods	1,583		1,643
Inventory, Noncurrent	$ 2,021		$ 2,018

Share-Based Payments (Details) - USD ($)	3 Months Ended
Share-Based Payments (Details) - USD ($)	Mar. 31, 2016	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 148,000	$ 238,000
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
unrecognized compensation cost related to non-vested stock options, net of forfeitures	$ 340
Outstanding, weighted average remaining contractual term (in years)	2 years 6 months 25 days

Share-based Compensation Employee Stock Option Plans (Details) - $ / shares	3 Months Ended	6 Months Ended	24 Months Ended	30 Months Ended
	Mar. 31, 2016	Jun. 30, 2005	Dec. 31, 1999	Jun. 30, 2002	Dec. 31, 2015	Dec. 12, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	157,200
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	(69,621)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 4.21
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures and Expirations	(980)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	889,992				1,028,935
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	550,097
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price	$ 11.97
Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price	$ 7.77
Share-based Compensation Arrangement by Share-based Payment Award, Options, Other Increases (Decreases) in Period	225,542
Share-based Compensation Arrangements by Share-based Payment Award, Options, Other Share Increase (Decrease) in Period, Weighted Average Exercise Price	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price	8.51
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price	7.64				$ 6.03
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price	$ 5.64
Equity Incentive Plan, 2007 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized						2,000,000
Share based Compensation Arrangement by Share based Payment Award, Number of Shares Authorized and Unissued	893,698
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	712,992
Incentive Plan, 1998 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	2,500,000
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number		300,494
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			9 years 9 months 18 days	6 years
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			1,066,000	1,248,250
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	177,000

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Feb. 26, 2016	Mar. 31, 2016	Mar. 31, 2015
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Common Stock, Dividends, Per Share, Declared	$ 0.05
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at the beginning of the period		$ 82,569	$ 76,016
Exercise of stock options		293	20
Stock Repurchased and Retired During Period, Value		(404)	0
Stock Options Repurchased During Period, Value		(1,752)	0
Proceeds from stock purchase plan		25	0
Dividends		(459)	(319)
Share-based compensation - options		143	238
Share-based compensation - ESPP		5	0
Tax benefit - stock option exercises		563	7
Unrealized gain or loss on investments, net of tax		121	55
Foreign currency translation adjustment		33	(180)
Net Income during the period		1,368	1,272
Balance at end of the period		$ 82,505	$ 77,109

Fair Value Measurements (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	$ 26,237	$ 26,365
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	19,506	20,744
Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	6,731	5,621
Fair Value, Inputs, Level 1 [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 [Member] \| Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 1 [Member] \| Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 2 [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	26,237	26,365
Fair Value, Inputs, Level 2 [Member] \| Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	19,506	20,744
Fair Value, Inputs, Level 2 [Member] \| Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	6,731	5,621
Fair Value, Inputs, Level 3 [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3 [Member] \| Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	0	0
Fair Value, Inputs, Level 3 [Member] \| Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Fair Value Disclosure	$ 0	$ 0

Income Taxes Income Tax Rates (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Income Tax Rate Disclosures [Abstract]
Effective tax rate, forecasted	35.20%
Effective Income Tax Rate, Continuing Operations, Forecasted Increase (Decrease) in Rate	0.60%
Effective Income Tax Rate, Continuing Operations		35.80%
Effective tax rate, including loss jurisdictions	35.50%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 93
Effective Tax Rate, After Discreet Benefits	31.30%