BENEFIT PLANS (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Apr. 27, 2011
BENEFIT PLANS
Vesting period of options	2 years
Expiration period of options	10 years
Maximum number of shares to be issued under equity incentive plan			500,000
Shares
Outstanding at the beginning of the period (in shares)	33,875	341,375
Exercised (in shares)	(21,375)	(70,500)
Forfeited (in shares)	(7,500)	(237,000)
Outstanding at the end of the period (in shares)	5,000	33,875
Exercisable at the end of the period (in shares)	5,000	33,875
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 5.71	$ 3.56
Exercised (in dollars per share)	$ 5.2	$ 3.16
Forfeited/expired (in dollars per share)	$ 5.20	$ 3.37
Outstanding at the end of the period (in dollars per share)	$ 8.65	$ 5.71
Exercisable at the end of the period (in dollars per share)	$ 8.65	$ 5.71