Discontinued Operations (Details) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income Statement by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales		$ 5,594,000		$ 53,426,000
Loss from operations, pretax		(1,317,000)		(7,393,000)
Loss from operations, after tax		(792,000)		(4,490,000)
Discontinued Operation, Provision for Loss (Gain) on Disposal, before Income Tax		9,108,000		62,989,000
Loss from discontinued operations	0	(9,900,000)	0	(67,479,000)
CRO & Tidewater [Member]
Income Statement by Disposal Groups, Including Discontinued Operations [Line Items]
Goodwill, Impairment Loss		$ 19,000,000		$ 75,000,000