INCOME TAXES (Details 3) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Deferred Tax Assets, Net [Abstract]
Federal, state, and foreign net operating losses	$ 18,713	$ 21,301
Postretirement benefits	608	655
Deferred employee benefits	1,924	2,450
Accrued pension	15,738	14,861
Inventory valuation	3,067	3,445
Foreign tax credit carryforwards	7,847	5,030
Other	2,804	3,155
Deferred Tax Assets, Gross	50,701	50,897
Less valuation allowance	43,663	44,789
Total deferred tax assets	7,038	6,108
Deferred Tax Liabilities, Net [Abstract]
Tax over book depreciation	(3,662)	(3,997)
Inventory valuation	(2,006)	(2,103)
Intangible assets	(1,637)	(1,672)
Other	(391)	(477)
Total deferred tax liabilities	(7,696)	(8,249)
Total deferred tax liabilities	$ (658)	$ (2,141)