Discontinued Operations (Net Sales and Income from Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended										12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Discontinued Operations [Abstract]
Net sales											$ 8,705	$ 15,589	$ 7,992
Income from discontinued operations											3,842	1,287	778
Income tax expense											2,418	459	292
Income from discontinued operations	$ 22	$ (238)	[1]	$ 1,250	[2]	$ 390	$ 286	$ 389	$ 229	$ (76)	$ 1,424	$ 828	$ 486
Effective Income Tax Rate Discontinued Operations											63.00%	35.70%	37.50%

[1] Includes a pre-tax loss of approximately $315,000 from the Company’s sale of Precise

[2] Includes a pre-tax gain of approximately $3,508,000 from the Company’s sale of SSD.