CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICALS) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]
Allowance for doubtful accounts	$ 781	$ 613
Common Stock, par value per share	$ 0.01	$ 0.01
Common Stock, shares authorized	150,000,000	150,000,000
Common Stock, shares issued	49,260,185	50,144,703
Common Stock, shares outstanding	49,260,185	50,144,703