EARNINGS PER SHARE AND STOCK-BASED COMPENSATION (Details 3) (Stock options, USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Stock options
Stock options, Shares
Outstanding at the beginning of the period (in shares)	1,046,746
Granted (in shares)	150,000
Exercised (in shares)	(63,063)
Expired (in shares)	(19,740)
Outstanding at the end of the period (in shares)	1,113,943
Options exercisable at the end of the period (in shares)	271,513
Stock options, Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 9.09
Granted (in dollars per share)	$ 7.43
Exercised (in dollars per share)	$ 7.30
Expired (in dollars per share)	$ 11.39
Outstanding at the end of the period (in dollars per share)	$ 8.93
Options exercisable at the end of the period (in dollars per share)	$ 11.89
Stock options, Weighted Average Remaining Contractual Term
Outstanding at the end of the period (in years)	6 years 1 month 6 days
Options exercisable at the end of the period (in years)	4 years 6 months
Stock options, Aggregate Intrinsic Value
Outstanding at the end of the period	$ 3,515
Options exercisable at the end of the period	$ 597