FAIR VALUE OF FINANCIAL INSTRUMENTS: (Tables)

12 Months Ended

Mar. 31, 2021

Fair Value Disclosures [Abstract]

Schedule of financial assets and liabilities measured at fair value

The following tables detail the fair value measurements within the fair value hierarchy of the Company's financial assets and liabilities at March 31, 2021 and March 31, 2020 (dollars in thousands):

	March 31, 2021
	Level 1		Level 2		Level 3		Total
Other current assets:
Assets of non-qualified retirement plan	$	15,838	$	—	$	—	$	15,838
Total	$	15,838	$	—	$	—	$	15,838

	March 31, 2020
	Level 1		Level 2		Level 3		Total
Other current assets:
Assets of non-qualified retirement plan	$	11,623	$	—	$	—	$	11,623
Total	$	11,623	$	—	$	—	$	11,623