SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Foreign Currency Translation Adjustments, Beginning balance	$ (5,691)	$ (2,894)
Other comprehensive (loss) income before reclassifications, Foreign Currency Translation Adjustments	202	(2,797)
Amounts reclassified from accumulated other comprehensive loss, Foreign Currency Translation Adjustments	0	0
Net current period other comprehensive (loss) income, Foreign Currency Translation Adjustments	202	(2,797)
Foreign Currency Translation Adjustments, Ending balance	(5,489)	(5,691)
Defined Benefit Pension Items, Beginning balance	(12,776)	(15,136)
Other comprehensive (loss) income before reclassifications, Defined Benefit Pension Items	765	1,285
Amounts reclassified from accumulated other comprehensive loss, Defined Benefit Pension Items	931	1,075
Net current period other comprehensive (loss) income, Defined Benefit Pension Items	1,696	2,360
Defined Benefit Pension Items, Ending balance	(11,080)	(12,776)
Beginning balance	(18,467)	(18,030)
Other comprehensive (loss) income before reclassifications	967	(1,512)
Amounts reclassified from accumulated other comprehensive loss	931	1,075
Net current period other comprehensive (loss) income	1,898	(437)
Ending balance	$ (16,569)	$ (18,467)