ACQUISITIONS (Details)	12 Months Ended
	Dec. 31, 2014 USD ($)	Dec. 31, 2014 Exhaust Technologies Inc. [Member] USD ($)	Dec. 31, 2014 Universal Air Tool Company Limited [Member] USD ($)	Dec. 31, 2014 Universal Air Tool Company Limited [Member] GBP (£)	Dec. 31, 2014 Air Tool Service Company [Member] USD ($)
Business Acquisition [Line Items]
Cash paid at closing	$ 19,456,000	$ 9,850,000	$ 1,947,000		$ 7,659,000
Net asset adjustments	342,000	484,000	(142,000)		0
Excess liabilities assumed	43,000	43,000	0		0
Fair value of contingent consideration	425,000	0	425,000	250,000	0
Total purchase price	$ 20,266,000	$ 10,377,000	$ 2,230,000		$ 7,659,000