Capital Lease Obligations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012 lease
Debt Instrument [Line Items]
Number of non-cancelable lease agreements		3
Amortization expense	$ 158	$ 131
Current portion of capital lease	217	240
Capital lease, net of current portion	43	231
Lease 1 [Member]
Debt Instrument [Line Items]
Value of non-cancelable capital lease agreements	38	90
Interest rates on non-cancelable capital lease agreements	8.80%	9.00%
Lease 2 [Member]
Debt Instrument [Line Items]
Value of non-cancelable capital lease agreements		30
Interest rates on non-cancelable capital lease agreements		3.00%
Lease 3 [Member]
Debt Instrument [Line Items]
Value of non-cancelable capital lease agreements		$ 48
Interest rates on non-cancelable capital lease agreements		0.00%