Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Leases [Abstract]
Depreciation expense on the equipment under the capital leases	$ 40	$ 40	$ 79	$ 79
Total
Remainder of 2014, Total	88		88
2015, Total	43		43
2016, Total	1		1
Capital Lease, Total	132		132
Interest
Remainder of 2014, Interest	2		2
2015, Interest	1		1
2016, Interest	0		0
Capital Lease Interest, Total	3		3
Principal
Remainder of 2014, Principal	86		86
2015, Principal	42		42
2016, Principal	1		1
Capital Lease Principal, Total	129		129
Current portion of capital lease obligations	116		116		217
Long-term portion of capital lease obligations	$ 13		$ 13		$ 43