EMPLOYEE BENEFIT PLANS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Supplemental Executive Retirement Plan
Net period benefit cost
Service cost	$ 82	$ 67	$ 164	$ 134
Interest cost	94	102	188	204
Recognized net actuarial loss	56	29	112	58
Recognized prior service cost	5	5	10	10
Net period benefit cost	237	203	474	406
Other Postretirement Benefit Plan
Net period benefit cost
Service cost	19	17	38	34
Interest cost	35	37	70	74
Recognized net actuarial loss	11	8	22	16
Net period benefit cost	$ 65	$ 62	$ 130	$ 124