Schedule of Minimum Future Rental Payments under Non-Cancelable Operating and Capital Lease (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Commitments And Contingencies Disclosure [Abstract]
2015	$ 247
2016	25
2017	15
2018	4
Minimum lease payments	291
Less current portion of minimum lease payments	(238)
Less interest	(16)
Long term portion of capital leases	37
2015	10,877
2016	7,777
2017	5,179
2018	3,773
2019	3,044
Thereafter	4,515
Minimum lease payments	$ 35,165