Condensed Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2012	Dec. 31, 2011
Condensed Balance Sheets [Abstract]
Allowance for doubtful accounts	$ 180,311	$ 182,880
Allowance for doubtful accounts non current	296,473	372,000
Accumulated depreciation on furniture, fixtures and equipment	454,966	446,484
Accumulated amortization of patents	382,195	344,238
Discount on notes payable		$ 3,065
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	50,000,000	50,000,000
Common Stock, Issued	16,275,525	15,556,878
Common stock, shares to be issued	1,472,671	1,501,457
Common stock, shares outstanding	16,242,192	15,523,545
Treasury stock, at cost	33,333	33,333