Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2014

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,
	2014			2013
Balance at beginning of period	$	41		$	404
Accruals for warranties issued during the period	216			375
Settlements (in cash or in kind) during the period	(41		)	(500		)
Balance at end of period	$	216		$	279