Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Year Ending December 31,
2013 remaining payments	$ 21
2014	80
2015	81
2016	22
Total minimum lease payments	204
Amount representing interest	(17)
Present value of minimum lease payments	187
Less current portion	78	49
Noncurrent portion	$ 109	$ 102

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.

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