ACQUISITIONS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		12 Months Ended		1 Months Ended	12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Apr. 30, 2012 Wayne Trail	May 17, 2012 Wayne Trail	Dec. 31, 2011 Weartech	Mar. 06, 2012 Weartech	Jun. 30, 2011 Techalloy	Jul. 29, 2011 Techalloy	Jun. 30, 2011 Torchmate	Jul. 29, 2011 Torchmate	Dec. 31, 2010 OOO Severstal-metiz	Mar. 11, 2011 OOO Severstal-metiz	Jan. 31, 2011 SSCO Manufacturing, Inc. (d/b/a Arc Products)	Dec. 31, 2010 SSCO Manufacturing, Inc. (d/b/a Arc Products)	Jun. 30, 2012 SSCO Manufacturing, Inc. (d/b/a Arc Products)
Acquisitions
Preliminary consideration paid in cash and assumed debt						$ 30,516		$ 29,995
Preliminary fair value of assets acquired						16,072		19,804
Preliminary goodwill from acquisition						14,444		10,191
Consideration paid in cash and assumed debt										36,900				16,861
Consideration paid in cash												8,280			3,280
Fair value of contingent consideration liability															3,806		4,436
Fair value of assets acquired										32,814		2,361		8,049	3,613
Goodwill from acquisition										4,086		5,919		8,812	3,473
Annual sales at the date of acquisition	744,045	699,293	1,471,167	1,298,472	50,000		40,000		70,000		13,000
Sales for last annual period													$ 40,000
Period of estimated sales as basis for contingent consideration															5 years
Sales for prior annual period																Not Significant