Leases Future Minimum Rental Payments (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015	$ 1,092,000
2016	1,043,000
2017	664,000
2018	347,000
2019	254,000
Thereafter	782,000
Total minimum lease payments, operating leases	4,182,000
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2015	437,000
2016	178,000
2017	0
2018	0
2019	0
Thereafter	0
Total minimum lease payments, capital leases	615,000
Less amount representing interest	(26,000)
Present value of net minimum lease payments	589,000
Less current portion	(412,000)	(412,000)
Capital lease obligations, net of current portion	177,000	572,000
Rent expenses under operating leases	$ 7,700,000	$ 3,300,000	$ 4,300,000