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Consolidated Statements of Cash Flows (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Operating Activities:    
Net loss including noncontrolling interest $ (965,000) $ (771,000)
Adjustments to reconcile net loss including noncontrolling interest to net cash provided by operating activities:    
Depreciation and amortization 188,000 212,000
Provision for inventory reserves 900,000 900,000
Provision for sales returns and doubtful accounts 11,000 19,000
Stock based compensation 26,000 19,000
Changes in assets and liabilities:    
Restricted cash 100,000 100,000
Trade accounts receivable 331,000 (371,000)
Inventory (65,000) 915,000
Prepaid expenses and other current assets (43,000) (11,000)
Trade accounts payable (100,000) (125,000)
Accrued liabilities (140,000) 96,000
Other assets and liabilities 21,000 (73,000)
Total adjustments 1,229,000 1,681,000
Net cash provided by operating activities 264,000 910,000
Investing Activities:    
Acquisition of property & equipment (20,000) (20,000)
Payments for investments in joint ventures (146,000) 0
Proceeds from return of investments 147,000 0
Purchases of investments in securities 0 (350,000)
Net cash used for investing activities (19,000) (370,000)
Impact of exchange rates on cash 4,000 30,000
Net increase in cash and cash equivalents 249,000 570,000
Cash and cash equivalents, beginning of period 2,475,000 1,905,000
Cash and cash equivalents, end of period 2,724,000 2,475,000
Supplemental disclosures of cash flow information:    
Cash paid for interest 53,000 53,000
Cash paid for income taxes, net $ 3,000 $ 3,000