Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2012

Commitments and Contingencies

Schedule of future minimum lease payments under non-cancelable operating leases

	As of December 31, 2011		As of September 30, 2012
	(in thousands)		(unaudited) (in thousands)
Year ending December 31:
2012	$	962	$	242
2013		965		965
2014		985		985
2015		1,004		1,004
Thereafter		2,424		2,424
	$	6,340	$	5,620