Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Operating Leased Assets [Line Items]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 1,159
Operating Leases, Future Minimum Payments, Due in Two Years	678
Operating Leases, Future Minimum Payments, Due in Three Years	677
Operating Leases, Future Minimum Payments, Due in Four Years	261
Operating Leases, Future Minimum Payments, Due in Four and Five Years [Abstract]	261
Operating Leases, Future Minimum Payments, Due Thereafter	669
Operating Leases, Future Minimum Payments Due	$ 3,705