Condensed Consolidated Balance Sheets Parenthetical (USD $)	Jun. 30, 2011	Dec. 31, 2010
Current Assets:
Allowance for doubtful accounts	$ 39,000	$ 39,000
Other Assets:
Restricted cash	$ 75,000	$ 75,000
Stockholders' Equity:
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	30,000,000	30,000,000
Common stock, shares issued	5,616,933	5,561,100
Common stock, shares outstanding	4,915,759	4,873,826
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Treasury stock, shares	701,174	687,274