Restructuring

In prior years, the Company implemented workforce reductions of employees from all areas of the Company. The Company recorded restructuring charges for the amount of one-time benefits provided to affected employees. Included in these costs was a net increase in non-cash, stock-based compensation reflecting a modification of certain stock-based awards previously granted to the affected employees. Additionally, in connection with excess and vacated facilities under long-term non-cancelable leases, the Company recorded a restructuring charge for the estimated future lease payments, less estimated sublease income, for these vacated facilities. For the three months ended March 31, 2013, the Company recorded additional restructuring charges related to a pending claim by an employee from a prior year workforce reduction. The pending claim is expected to be resolved during 2013.

The following table summarizes the accrual and usage of the restructuring charges (in thousands):



	Leases			Severance			Total
Ending Balance, December 31, 2012	$	517		$	124		$	641
Restructuring charge	—			431			431
Cash payments	(29		)	(88		)	(117		)
Ending Balance, March 31, 2013	$	488		$	467		$	955
Current portion of accrued restructuring	$	151		$	467		$	618
Long-term portion of accrued restructuring	$	337		$	—		$	337