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Consolidated Statements of Cash Flows (Unaudited) (USD $)
 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Operating activities:    
Net loss $ (565,000) $ (647,000)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 126,000 140,000
Provision for sales returns and doubtful accounts 3,000 59,000
Stock based compensation 19,000 19,000
Changes in assets and liabilities:    
Restricted cash 0 100,000
Trade accounts receivable (135,000) (76,000)
Inventory 1,195,000 736,000
Prepaid expenses and other current assets (9,000) (14,000)
Trade accounts payable (216,000) 27,000
Accrued liabilities (10,000) (35,000)
Other assets and liabilities 159,000 (10,000)
Total adjustments 1,132,000 946,000
Net cash provided by operating activities 567,000 299,000
Investing activities:    
Acquisition of property & equipment (7,000) (9,000)
Payments for investments in joint venture 0 (294,000)
Return of capital from joint venture 0 159,000
Net cash used for investing activities (7,000) (144,000)
Impact of exchange rates on cash 3,000 3,000
Net increase in cash and cash equivalents 563,000 158,000
Cash and cash equivalents, beginning of period 2,724,000 2,475,000
Cash and cash equivalents, end of period 3,287,000 2,633,000
Supplemental disclosures of cash flow information:    
Cash paid for interest 39,000 39,000
Cash paid for income taxes, net $ 2,000 $ 3,000