PENSION AND POSTRETIREMENT WELFARE PLANS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Net amount recognized in the consolidated balance sheet
Accrued pension cost at end of period	$ 2,298	$ 3,812
Pension Plan
Pension plan
Number of last years of employment in which the employee's compensation is considered for determining benefits	3 years
Change in projected benefit obligation:
Benefit obligation at beginning of period	6,277	5,566
Service cost	103	122
Employee contributions	10	9
Interest cost	241	259
Actuarial (gain) loss	(638)	580
Benefits paid	(255)	(249)
Benefit obligation at end of period	5,738	6,277
Change in plan assets:
Fair value of plan assets at beginning of period	4,086	3,418
Actual return on plan assets	691	469
Employee contributions	10	9
Employer contributions	315	439
Benefits and expenses paid	(255)	(249)
Fair value of plan assets at end of period	4,847	4,086
Net amount recognized in the consolidated balance sheet
Excess of projected benefit obligation over fair value of plan assets	891	2,191
Unrecognized loss	(875)	(2,088)
Accrued pension cost prior to pension adjustments	16	103
Accumulated Other Comprehensive Income at Current Measurement Date	875	2,088
Accrued pension cost at end of period	891	2,191
Accumulated benefit obligation	5,548	6,032
Amount of accumulated other comprehensive income expected to be recognized as a plan expense in 2014	$ 43