Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Leases [Abstract]
Depreciation expense on the equipment under the capital leases	$ 40	$ 40
Total
Remainder of 2014, Total	157
2015, Total	43
2016, Total	1
Capital Lease, Total	201
Interest
Remainder of 2014, Interest	5
2015, Interest	1
2016, Interest	0
Capital Lease Interest, Total	6
Principal
Remainder of 2014, Principal	152
2015, Principal	42
2016, Principal	1
Capital Lease Principal, Total	195
Current portion of capital lease obligations	170		217
Long-term portion of capital lease obligations	$ 25		$ 43