Warranties (Tables)

6 Months Ended

Jun. 30, 2016

Product Warranties Disclosures [Abstract]

Change in the Company's warranty reserve

The overall change in the Company’s warranty reserve is reflected on the condensed consolidated balance sheets in accrued expenses and taxes and is detailed as follows:

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2016			2015			2016			2015
	(in thousands)
Liability, beginning of period	$	1,713		$	1,340		$	1,415		$	953
Provision for warranties issued during the period, net of adjustments	29			286			444			894
Adjustments to warranties issued during previous periods	(16		)	(4		)	(11		)	(8		)
Warranty claims	(142		)	(244		)	(264		)	(461		)
Liability, end of period	$	1,584		$	1,378		$	1,584		$	1,378