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Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Operating activities:    
Net loss $ (441,000) $ (565,000)
Adjustments to reconcile net loss to net cash (used in) provided by operating activities:    
Depreciation and amortization 98,000 126,000
Provision for sales returns and doubtful accounts 58,000 3,000
Stock based compensation 14,000 19,000
Loss on investments 208,000 158,000
Changes in assets and liabilities:    
Trade accounts receivable (238,000) (135,000)
Inventory (260,000) 1,195,000
Prepaid expenses and other current assets (13,000) (9,000)
Trade accounts payable 512,000 (216,000)
Accrued liabilities 41,000 (10,000)
Other assets and liabilities 4,000 1,000
Total adjustments 424,000 1,132,000
Net cash (used in) provided by operating activities (17,000) 567,000
Investing activities:    
Acquisition of property & equipment (26,000) (7,000)
Net cash used for investing activities (26,000) (7,000)
Impact of exchange rates on cash 6,000 3,000
Net (decrease) increase in cash and cash equivalents (37,000) 563,000
Cash and cash equivalents, beginning of period 3,470,000 2,724,000
Cash and cash equivalents, end of period 3,433,000 3,287,000
Supplemental disclosures of cash flow information:    
Cash paid for interest 39,000 39,000
Cash paid for income taxes, net $ 9,000 $ 2,000