Commitments and Contingencies (Details 2) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 230
Operating Leases, Future Minimum Payments, Due in Two Years	1,052
Operating Leases, Future Minimum Payments, Due in Three Years	1,078
Operating Leases, Future Minimum Payments, Due in Four Years	1,103
Operating Leases, Future Minimum Payments, Due in Five Years	1,129
Operating Leases, Future Minimum Payments, Due Thereafter	572
Operating Leases, Future Minimum Payments Due	$ 5,164