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FAIR VALUE OF FINANCIAL INSTRUMENTS: (Tables)
6 Months Ended
Sep. 30, 2022
Fair Value Disclosures [Abstract]  
Schedule of Financial Assets and Liabilities Measured at Fair Value
The following table details the fair value measurements within the fair value hierarchy of the Company's financial assets and liabilities at September 30, 2022 and March 31, 2022 that are measured at fair value on a recurring basis (dollars in thousands):
 
September 30, 2022
Level 1Level 2Level 3Total
Other current assets:
Assets of non-qualified retirement plan$11,704 $— $— $11,704 
Total$11,704 $— $— $11,704 
March 31, 2022
Level 1Level 2Level 3Total
Other current assets:
Assets of non-qualified retirement plan$15,528 $— $— $15,528 
Total$15,528 $— $— $15,528