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Warranty Reserves (Tables)
3 Months Ended
May 31, 2018
Product Warranties Disclosures [Abstract]  
Changes in the warranty reserves
The following table shows changes in the warranty reserves since the end of fiscal 2018 (in thousands):
 
 
Warranty Reserve
Balance at February 28, 2018
$
2,013

Warranty costs incurred
(577
)
Additions charged to income
675

Balance at May 31, 2018
$
2,111