Warranty Reserves (Tables)

9 Months Ended

Nov. 30, 2014

Product Warranties Disclosures [Abstract]

Changes in the warranty reserves

The following table shows changes in the warranty reserves since the end of fiscal 2014:

	Warranty Reserve
	(unaudited)
	(in thousands)
Balance at February 28, 2014	$	1,338
Warranty costs incurred	(597		)
Additions charged to income	288
Balance at May 31, 2014	$	1,029
Warranty costs incurred	(149		)
Additions charged to income	747
Balance at August 31, 2014	$	1,627
Warranty costs incurred	(86		)
Additions charged to income	407
Balance at November 30, 2014	$	1,948