LEASES - Lease Right-of-use Assets and Lease Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Mar. 31, 2021
Finance lease right-of-use asset	$ 1,393	$ 1,432
Finance lease liability	$ 2,307	$ 2,329
Finance lease remaining lease term	18 years 2 months 4 days	18 years 8 months 4 days
Finance lease discount rate	7.16%	7.16%
Operating lease liabilities	$ 8,538
Operating lease weighted-average remaining lease term	7 years 5 months 26 days	7 years 10 months 13 days
Operating lease weighted-average discount rate	1.78%	1.77%
Financial lease ROU assets
Finance lease right-of-use asset	$ 1,393	$ 1,432
Finance lease liability
Finance lease liability	2,307	2,329
Prepaid expenses and other assets
Operating lease right-of-use assets	8,129	8,782
Accrued expenses and other liabilities
Operating lease liabilities	$ 8,538	$ 9,201