STOCK-BASED COMPENSATION (Details 2) (Stock Options, USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Summary of stock option activity
Outstanding at beginning of period (in shares)	406,731
Exercised (in shares)	(13,415)
Expired (in shares)	(130,514)
Outstanding at end of period (in shares)	262,802
Vested or expected to vest at end of period (in shares)	262,802
Exercisable at end of period (in shares)	262,802
Outstanding at beginning of period, weighted average exercise price (in dollars per share)	$ 26.72
Exercised, weighted average exercise price (in dollars per share)	$ 21.09
Expired, weighted average exercise price (in dollars per share)	$ 38.76
Outstanding at end of period, weighted average exercise price (in dollars per share)	$ 21.03
Vested or expected to vest at end of period, weighted average exercise price (in dollars per share)	$ 21.03
Exercisable at end of period, weighted average exercise price (in dollars per share)	$ 21.03
Outstanding at end of period, weighted average remaining term	10 months 24 days
Vested or expected to vest at end of period, weighted average remaining term	10 months 24 days
Exercisable at end of period, weighted average remaining term	10 months 24 days
Outstanding at end of period, aggregate intrinsic value	$ 4,064
Vested or expected to vest at end of period, aggregate intrinsic value	4,064
Exercisable at end of period, aggregate intrinsic value	4,064
Share based compensation plan, additional disclosures
Total intrinsic value of options exercised	194	127
Total fair value of options vested		$ 363
Minimum
Stock Options
Vesting period	3 years
Contractual term of stock option grants	7 years
Maximum
Stock Options
Vesting period	4 years
Contractual term of stock option grants	10 years