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Condensed Statements of Cash Flows (Unaudited) (USD $)
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Operating activities:    
Net income (loss) $ (37,056) $ (333,574)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:    
Depreciation and amortization 2,289 3,023
Stock based compensation 5,770 10,892
Provision for accounts receivable allowances 10,011 (44,465)
Provision for inventory reserves (34,266) (372,445)
Changes in operating assets and liabilities:    
Accounts receivable (196,149) 491,198
Inventories (119,591) 330,835
Prepaid expenses and other assets (17,685) 12,752
Accounts payable and accrued expenses 233,277 30,082
Net cash provided by (used in) operating activities (153,400) 128,298
Investing activities:    
Additions to property, plant and equipment    (19,414)
Net cash provided by (used in) investing activities    (19,414)
Financing activities:    
Net funds received from (paid to) bank credit lines 137,091 (111,097)
Net cash provided by (used in) financing activities 137,091 (111,097)
Effect of exchange rate changes on cash 230 1,217
Net change in cash (16,079) (996)
Cash and cash equivalents at beginning of period 55,393 195,704
Cash and cash equivalents at end of period 39,314 194,708
Supplemental disclosures of cash flow information:    
Cash paid during the period for: Interest 14,374 17,236
Cash paid during the period for: Income taxes $ 1,331 $ 512