Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

Schedule of Changes in Reserve for Product Warranty Claim Costs

Changes in the liability for product warranty claim costs were as follows:

(In thousands)	Six Months Ended June 30,
	2015			2014
Balance at beginning of period	$	353		$	41
Accruals for warranties issued during the period	—			216
Settlements (in cash or in kind) during the period	(329		)	(41		)
Balance at end of period	$	24		$	216