Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2013

Commitments and Contingencies Disclosure [Abstract]

Contractual Obligation, Fiscal Year Maturity Schedule

Future minimum payments by year under non-cancelable leases with initial terms in excess of one year were as follows as of March 31, 2013:

Remaining 2013	$	494
2014	474
2015 and thereafter	—
	$	968