EMPLOYEE BENEFIT PLANS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Components of net periodic benefit cost [Abstract]
Service cost	$ 184	$ 141	$ 368	$ 283
Interest cost	90	82	180	164
Expected return on plan assets	(161)	(155)	(322)	(310)
Amortization of prior service cost			1	1
Recognized net actuarial loss	71	29	142	57
Net periodic benefit cost	$ 184	$ 97	$ 369	$ 195