Commitments and Contingencies (Commitments) (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Commitments and Contingencies Disclosure [Abstract]
2013	$ 1,788,000
2014	1,479,000
2015	1,270,000
2016	979,000
2017	963,000
Thereafter	7,582,000
Total lease obligations	14,061,000
Operating Leases, Rent Expense, Net	2,700,000	1,700,000	1,500,000
Contractual Obligation, Specifically Leases Total	14,100,000
Contractual Obligation, Specifically Leases, Due in Next Twelve Months	$ 1,800,000