CHANGES IN ACCUMULATED OTHER COMPREHENSIVE LOSS (Details 2) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Reclassification out of AOCI
Sales	$ 93,008	$ 68,924	$ 78,851	$ 70,850	$ 103,101	$ 79,784	$ 79,355	$ 67,219	$ 311,633		$ 329,459		$ 334,413
Other expense, net									(514)		(471)		(559)
(Loss) income from continuing operations before income taxes									(1,125)		5,932		19,341
Income taxes									(1,233)		(1,537)		(1,486)
Net (loss) income	4,542	(7,578)	1,349	(453)	6,143	1,479	2,265	40	(2,140)		9,927		17,855
Unrealized gain (loss) on cash flow hedges | Amount reclassified from AOCI
Reclassification out of AOCI
Sales									(43)		(20)		101
Other expense, net									(106)		14		277
(Loss) income from continuing operations before income taxes									(149)		(6)		378
Income taxes									(8)		1		(63)
Net (loss) income									(157)		(5)		315
Retirement plans related adjustments | Amount reclassified from AOCI
Reclassification out of AOCI
Amortization of prior service credit									(399)	[1]	(647)	[1]	(407)	[1]
Amortization of transition asset									(276)	[1]	(272)	[1]	(269)	[1]
Amortization of actuarial loss									2,063	[1]	3,447	[1]	2,410	[1]
(Loss) income from continuing operations before income taxes									1,388		2,528		1,734
Income taxes									(65)		(221)		(207)
Net (loss) income									$ 1,323		$ 2,307		$ 1,527

[1] These AOCI components are included in the computation of net period pension and post retirement costs. See Note 13. "Employee Benefits" for details.