Commitments and Contingencies (Details-3) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Leases, Future Minimum Rental Payments [Abstract]
Operating lease renewal term	1 year
Minimum lease payments, 2014	$ 1,668,000
Minimum lease payments, 2015	1,478,000
Minimum lease payments, 2016	983,000
Minimum lease payments, 2017	718,000
Minimum lease payments, 2018	418,000
Minimum lease payments, Thereafter	8,179,000
Rental expense under operating leases	$ 2,700,000	$ 2,600,000	$ 3,200,000