Supplemental Disclosure of Non-cash Activities: Net Cash used in investing activities Net Cash used in investing activities Accrued liabilities Depreciation and amortization expense Adjustments to reconcile net income to cash provided by (used in) operating activities Operating expense: Revenue, net Deferred rent Deferred product revenue Entity Voluntary Filers Share-based compensation Black-Scholes assumptions Intangible Assets, Goodwill and Other Cash paid for income taxes Prepaid expense and other assets Proceeds from litigation Proceeds from litigation Sales and marketing Sales and marketing Total current liabilities Total current liabilities Goodwill Intangibles, net Entity Registrant Name Business Combinations Commitments and Contingencies Disclosure [Text Block] Operating income Total liabilities and shareholders' equity Total liabilities and shareholders' equity Retained earnings (accumulated deficit) Total assets Total assets Long-term inventories, net Prepaid Expenses and other assets Cash and cash equivalents Cash and cash equivalents at the beginning of the period Cash and cash equivalents at the end of the period Document Period End Date Schedule of Current Inventory Other long-term assets and liabilities Inventories {1} Inventories Increase (decrease) in reserves against inventories Basic weighted average number of shares outstanding Statement [Line Items] Current Fiscal Year End Date Amendment Flag Subsequent Events Purchase of property and equipment Entity Current Reporting Status Proceeds from litigation {2} Proceeds from litigation 3. Goodwill and Intangibles Supplemental Disclosure of Non-cash Activities: [Abstract] Cash flows from investing activities: Total operating expenses Total operating expenses Other long-term liabilities Other assets Entity Central Index Key Document and Entity Information Schedule of Shareholders' Equity 4. Inventories Goodwill and Intangible Assets Disclosure [Abstract] Proceeds from issuance of common stock - options Provision (benefit) for income taxes Provision (benefit) for income taxes Common Stock, Shares Authorized Total liabilities Total liabilities Current Liabilities: Statement [Table] Schedule of Long-term Inventory, net of reserves 6. Shareholders' Equity Gross profit Gross profit Common stock Deferred income taxes {1} Deferred income taxes Document Fiscal Year Focus Commitments and Contingencies {1} Commitments and Contingencies Business Combinations [Abstract] Net cash provided by (used in) financing activities Net cash provided by (used in) financing activities Stockholders' Equity, Number of Shares, Par Value and Other Disclosures Property and equipment, net Earnings Per Share - The Following Table Sets Forth The Computation of Basic and Diluted Earnings Per Common Share: [Abstract] Treasury Stock purchased Net Cash Provided by (used in) operating activities Net Cash Provided by (used in) operating activities Research and product development Research and product development Additional paid in capital Entity Filer Category Equity Purchase Price Allocation for VCON business acquired Income taxes payable Income Statement Schedule of future amortization of intangible assets Income Tax Disclosure [Text Block] Net increase in cash and cash equivalents Net increase in cash and cash equivalents Provision for (recovery of) doubtful accounts Net income {1} Net income Statement of Cash Flows Common Stock, Shares Issued Shareholders' equity: LIABILITIES AND SHAREHOLDERS' EQUITY Inventories Balance Sheets Document Fiscal Period Focus Entity Common Stock, Shares Outstanding 1. Business Description, Basis of Presentation and Significant Accounting Policies Deferred product revenue {1} Deferred product revenue Changes in operating assets and liabilities: Diluted Earnings per common share Total current assets Total current assets Deferred income taxes Receivables net of allowance for doubtful accounts Entity Well-known Seasoned Issuer Proceeds from litigation {1} Proceeds from litigation Inventory Disclosure [Abstract] 2. Business Combination Supplemental tatement of Cash Flows Cash flows from financing activities: Accrued Liabilities {1} Accrued Liabilities Entity Public Float Inventory Stockholders' Equity Note [Abstract] Cash flows from operating activities: Diluted weighted average Number of shares outstanding Basic Earnings per common shares Net income Net income Other income (expense), net Accounts Payable {1} Accounts Payable Document Type Compensation Related Costs, Share Based Payments Earnings Per Share - The Following Table Sets Forth The Computation of Basic and Diluted Earnings Per Common Share: Subsequent Events [Text Block] 5. Share-based Compensation Accounting Policies [Abstract] Payment towards acquisition of VCON business Income before income taxes Income before income taxes Common Stock, Shares Outstanding Total shareholders' equity Total shareholders' equity Treasury Stock, Value Amendment Description Schedule of Intangible Assets Income Taxes Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Accounts payable Accounts receivable Stock-based compensation General and administrative General and administrative Cost of goods sold Current assets: ASSETS