CONDENSED BALANCE SHEETS (Parenthetical) (USD $)	Jun. 30, 2011	Dec. 31, 2010
CONDENSED BALANCE SHEETS (Parenthetical)
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	7,048,570	6,911,570
Common stock, shares outstanding (in shares)	6,915,313	6,789,736
Treasury stock, shares (in shares)	133,257	121,834