Accrued Liabilities (Tables)

9 Months Ended

Sep. 30, 2014

Payables and Accruals [Abstract]

Accrued liabilities

Accrued liabilities consist of the following (in thousands):

	September 30, 2014		December 31, 2013
Accrued payroll and related costs	$	1,975	$	3,885
Warranty reserve	102		515
Restructuring charges	1,588		49
Customer deposits	2		643
Transaction costs related to sale of Grid Business	2,559		—
Litigation charges	1,718		1,875
Accrued taxes	31		75
Other accrued liabilities	375		353
	$	8,350	$	7,395