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DISCONTINUED OPERATIONS: (Tables)
12 Months Ended
Mar. 31, 2022
Discontinued Operations and Disposal Groups [Abstract]  
Disposal Groups, Including Discontinued Operations The following is a reconciliation of the major classes of line items constituting earnings from discontinued operations, net of tax (dollars in thousands):
Year ended March 31, 2020
Operating expenses:
Gains, losses and other items, net$(957)
Total operating expenses(957)
Earnings from discontinued operations before income taxes957 
Income taxes207 
Earnings from discontinued operations, net of tax$750