CONDENSED CONSOLIDATED BALANCE SHEETS (PARENTHETICALS) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
CONDENSED CONSOLIDATED BALANCE SHEETS [Abstract]
Allowance for doubtful accounts	$ 657	$ 834
Common Stock, par value per share	$ 0.01	$ 0.01
Common Stock, shares authorized	150,000,000	150,000,000
Common Stock, shares issued	48,126,367	47,745,592
Common Stock, shares outstanding	48,126,367	47,745,592