CHANGES IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) (Details 2) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Reclassification out of AOCI
Sales		$ 84,991	$ 67,211	$ 227,745	$ 205,218
Other expense, net		(276)	(321)	(468)	(249)
Income from continuing operations before income taxes		2,864	(726)	3,140	(1,818)
Income taxes		(665)	(657)	(466)	(666)
Net earnings (loss) applicable to common shareholders		2,199	(1,383)	2,674	(2,484)
Total before tax		(540)	(1,434)	(2,372)	(3,038)
Unrealized gain (loss) on cash flow hedges
Reclassification out of AOCI
Total before tax		358	126	247	110
Amortization of prior service credit
Reclassification out of AOCI
Total before tax	[1]	79	64	233	191
Amortization of transition asset
Reclassification out of AOCI
Total before tax	[1]	0	78	0	234
Amortization of actuarial loss
Reclassification out of AOCI
Total before tax	[1]	(932)	(937)	(2,777)	(2,808)
Settlement loss
Reclassification out of AOCI
Total before tax		(45)	(765)	(75)	(765)
Retirement plans related adjustments
Reclassification out of AOCI
Total before tax		(898)	(1,560)	(2,619)	(3,148)
Income taxes		100	228	284	396
Net of tax		(798)	(1,332)	(2,335)	(2,752)
Amount reclassified from AOCI | Unrealized gain (loss) on cash flow hedges
Reclassification out of AOCI
Sales		342	39	222	62
Other expense, net		16	87	25	48
Income from continuing operations before income taxes		358	126	247	110
Income taxes		69	21	60	18
Net earnings (loss) applicable to common shareholders		$ 427	$ 147	$ 307	$ 128

[1] These AOCI components are included in the computation of net periodic pension and post retirement costs. See Note 11. "Pension and Postretirement Plans" for details.