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Balance Sheets (Parenthetical) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Balance Sheets [Abstract]    
Allowance for doubtful accounts $ 179,259 $ 182,880
Allowance for doubtful accounts noncurrent 167,971 372,000
Accumulated depreciation on Furniture, Fixtures & Equipment 458,708 446,484
Accumulated amortization of patents 420,556 344,238
Discount on notes payable $ 0 $ 3,065
Common stock, par value $ 0.001 $ 0.001
Common stock, shares authorized 50,000,000 50,000,000
Common stock, shares issued 16,563,306 15,556,878
Common stock, shares to be issued 1,635,709 1,501,457
Common stock, shares outstanding 16,529,973 15,523,545
Treasury stock, at cost 33,333 33,333