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 six months ended June 30, 2013, the Company recorded additional restructuring charges related to workforce reductions and relocation expenses.

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



	Leases			Severance			Total
Beginning balance, January 1, 2013	$	517		$	124		$	641
Restructuring charge	—			822			822
Cash payments	(61		)	(560		)	(621		)
Ending balance, June 30, 2013	$	456		$	386		$	842
Current portion of accrued restructuring	$	147		$	386		$	533
Long-term portion of accrued restructuring	$	309		$	—		$	309