Balance Sheet Parenthetical (USD $)	Sep. 30, 2011	Dec. 31, 2010
Current Assets:
Allowance for doubtful accounts	$ 0	$ 0
Stockholders' Equity:
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	50,000,000	50,000,000
Common stock, shares issued	27,436,922	27,017,165
Common stock, shares outstanding	27,119,191	27,004,934
Treasury stock, shares	(317,731)	(12,231)