Restructuring Reserve (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 707,000	$ 555,000
Property, plant and equipment classfied as held for sale	5,700,000		5,700,000
Restructuring Reserve [Roll Forward]
Balance, beginning	318,000	605,000
Provision	707,000	555,000
Less: Payments	(1,025,000)	(592,000)
Balance, ending	0	568,000
Severance & Personnel [Member]
Restructuring Reserve [Roll Forward]
Balance, beginning	318,000	0
Provision	231,000	239,000
Less: Payments	(549,000)	(239,000)
Balance, ending	0	0
Other Exit Costs [Member]
Restructuring Reserve [Roll Forward]
Balance, beginning	0	605,000
Provision	476,000	316,000
Less: Payments	(476,000)	(353,000)
Balance, ending	0	568,000
Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	500,000	500,000
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Charges	$ 200,000	$ 100,000