Commitments And Contingencies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract]
Rent expense	$ 1,800,000	$ 1,700,000	$ 1,000,000
2013	82,000
2014	49,000
2015	27,000
2016	12,000
2017	5,000
2018 and thereafter	16,000
Total	$ 191,000