CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) (Parenthetical) (USD $)	Mar. 31, 2012	Dec. 31, 2011
CURRENT ASSETS:
Accounts receivable, allowance for doubtful accounts	$ 125,000	$ 30,000
STOCKHOLDERS' EQUITY:
Preferred stock - shares authorized (in shares)	10,000,000	10,000,000
Preferred stock - shares outstanding (in shares)	0	0
Common stock - par value (in dollars per share)	$ 0.01	$ 0.01
Common stock - shares authorized (in shares)	100,000,000	100,000,000
Common stock - shares issued (in shares)	63,675,596	63,368,096
Common stock - shares outstanding (in shares)	63,675,596	63,368,096