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Warranty Reserves (Tables)
9 Months Ended
Nov. 30, 2020
Product Warranties Disclosures [Abstract]  
Changes in the warranty reserves
The following table shows the changes in the warranty reserves for the nine months ended November 30, 2020 (dollars in thousands):
 
Balance at February 29, 2020$3,702 
Warranty costs incurred(1,251)
Additions charged to income1,073 
Transferred to held for sale(478)
Balance at November 30, 2020$3,046