ACQUISITIONS (Details) $ / shares in Units, $ in Thousands, € in Millions, SFr in Millions						3 Months Ended								12 Months Ended
	Sep. 22, 2014 USD ($) machine_solution customer	Sep. 22, 2014 EUR (€) machine_solution customer	Dec. 31, 2013 USD ($)	Dec. 31, 2013 CHF (SFr)	May. 09, 2013 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($)	Mar. 31, 2014 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($) $ / shares	Dec. 31, 2013 USD ($) $ / shares
ACQUISITIONS
Purchase price less cash acquired														$ 0	$ 5,683	$ 34,250
Proceeds from disposal of business														0	218	6,255
Liabilities assumed
Goodwill			$ 10,002			$ 6,620				$ 6,698				6,620	6,698	10,002
Gain from disposal of discontinued operation, net of tax										0	$ 0	$ 0	$ 218	0	218	4,890
Sales						86,960	$ 76,805	$ 82,356	$ 69,128	93,008	68,924	78,851	70,850	315,249	311,633	329,459
Net (loss) income						$ 2,759	$ (327)	$ 1,586	$ (1,408)	4,542	$ (7,578)	$ 1,349	$ (453)	2,610	(2,140)	9,927
Gain on purchase of business														0	(462)	0
Supplemental Pro Forma Information
Sales															318,061	359,973
Net (loss) income from continuing operations															$ (7,402)	$ 5,406
Diluted (loss) earnings per share from continuing operations (in dollars per share) | $ / shares															$ (0.58)	$ 0.45
Restructuring charges														3,558	$ 0	$ 0
Voumard [Member]
ACQUISITIONS
Cash used in funding of acquisition	$ 2,150	€ 1.7
Assets Acquired
Inventories	2,984
Property, plant and equipment	259
Trade name, customer list, and other intangible assets	131
Total assets acquired	3,374
Liabilities assumed
Accounts payable and other current liabilities	600
Deferred tax liability	162
Net assets	$ 2,612
Installed Machine Base (machine solutions) | machine_solution	9,000	9,000
Customer Base (customers) | customer	2,500	2,500
Gain on purchase of business	$ (462)													(500)
Supplemental Pro Forma Information
Restructuring charges															4,900
Acquisition Related Costs														$ 100
Forkardt Inc. [Member]
ACQUISITIONS
Purchase price less cash acquired					$ 34,250
Bank debt used in funding of acquisition					24,300
Cash used in funding of acquisition					10,000
Assets Acquired
Accounts receivable					5,521
Inventories					5,357
Other current assets					1,257
Property, plant and equipment					6,271
Other non-current assets					105
Trade name, customer list, and other intangible assets					14,614
Total assets acquired					33,125
Liabilities assumed
Accounts payable and other current liabilities					3,413
Other non-current liabilities					1,278
Net assets					28,434
Goodwill					$ 5,816
Supplemental Pro Forma Information
Weighted average useful life of intangible assets					17 years 3 months 18 days
Acquisition Related Costs															2,200
Tax deductible amount of goodwill					$ 2,400
Forkardt Swiss Operations [Member]
ACQUISITIONS
Proceeds from disposal of business			$ 6,300	SFr 5.6
Liabilities assumed
Net assets										$ 1,200					$ 1,200
Customer Relationships [Member] | Forkardt Inc. [Member]
Assets Acquired
Trade name, customer list, and other intangible assets					4,300
Trade names [Member] | Forkardt Inc. [Member]
Assets Acquired
Trade name, customer list, and other intangible assets					5,300
Technical Know How [Member] | Voumard [Member]
Assets Acquired
Trade name, customer list, and other intangible assets	$ 100
Technical Know How [Member] | Forkardt Inc. [Member]
Assets Acquired
Trade name, customer list, and other intangible assets					$ 5,000