3. Accrued product warranty liability

6 Months Ended

Jun. 30, 2014

Product Warranties Disclosures [Abstract]

Product Warranty Disclosure [Text Block]

3. Accrued product warranty liability

We generally warrant our products for up to 36 months and record the estimated cost of such product warranties at the time the sale is recorded. Estimated warranty costs are based upon actual past experience of product repairs and the related estimated cost of labor and material to make the necessary repairs.

The following table summarizes the activity recorded in the accrued product warranty liability during the six months ended June 30, 2014:

	(In thousands)
Balance, beginning of period	$	366
Warranties issued		123
Warranty settlements		(146)
Balance, end of period	$	343

Approximately $234,000 of the accrued product warranty liability is classified as current in Accrued liabilities at June 30, 2014 in the Condensed Balance Sheets.  The remaining $109,000 of the accrued product warranty liability is classified as long-term in Other liabilities.