Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
Balance Sheets
Accounts receivable, net of allowance	$ 241,690	$ 367,536
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	55,431,423	54,746,240
Treasury stock, shares	40,151	40,151