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Condensed Statements of Cash Flows (Unaudited) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Cash flows from operating activities:    
Net income (loss) $ 150,746 $ (355,181)
Adjustments to reconcile net income (loss) net cash used in operating activities:    
Depreciation expense 4,400 5,236
Amortization of patents 19,375 18,921
Amortization of debt discount 0 1,532
Common stock and options for compensation, consulting and vendor services 280,610 41,439
Accrued interest expense on notes payable 24,419 20,839
Bad debt reversal (55,987) (42,326)
Loss on Earning on Medical Joint Venture   78,095
Changes in operating assets and liabilities:    
(Increase) Decrease in accounts receivable (246,594) 157,927
Decrease in inventories 13,012 201,321
Decrease to advance to contracts 39,756 108,081
Decrease to prepaid expenses and other current assets 73,119 6,949
Decrease in other assets   7,503
Decrease in accounts payable (306,322) (524,525)
(Decrease) Increase in accrued expenses (80,201) 151,001
Net cash used in operating activities (83,667) (123,188)
Cash flows from investing activities:    
Investment in Education Joint Venture (50,000)  
Purchases of property and equipment (856)  
Payment for patents rights (9,122) (10,150)
Net cash used in investing activities (59,978) (10,150)
Cash flows from financing activities:    
Proceeds from the sale of common stock 50,000 150,000
Proceeds from loan from related party 50,000  
Net cash provided by financing activities 100,000 150,000
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS (43,645) 16,662
Cash and cash equivalents at beginning of period 165,249 96,324
Cash and cash equivalents at end of period 121,604 112,986
Supplemental disclosure of cash flow information:    
Shares issued to employees in lieu of cash compensation $ 11,875 $ 7,500