DISCONTINUED OPERATIONS (Details) - USD ($) $ in Thousands		3 Months Ended			9 Months Ended
	Oct. 01, 2014	Sep. 30, 2015	Dec. 31, 2014	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Income (loss) from operations, net of tax		$ 0		$ 20	$ 0	$ (77)
AMK Technical Services
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sales price	$ 6,830
Cash consideration	4,330
Note receivable	$ 2,500
Note receivable, term	90 days
Gain on sale of business			$ 1,476
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Net sales				1,563		4,540
Income (loss) from operations, net of tax				20		77
Tax provision				$ 16		$ 1