Accrued Warranty (Tables)

3 Months Ended

Mar. 31, 2016

Accrued Warranty

Schedule of accrual for product warranty

The following summarizes the activity in the Company’s accrual for product warranty (in thousands):

	Three Months Ended
	March 31,
	2016			2015
Balance at beginning of period	$	228		$	373
Accrued warranty expense	61			125
Warranty claims paid	(47		)	(155		)
Balance at end of period	$	242		$	343