FINANCING RECEIVABLES AND OPERATING LEASES (Details) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Profit Recognized for Sales-type Leases [Abstract]
Net sales	$ 14,943	$ 27,196
Cost of sales	12,478	17,855
Gross profit	2,465	9,341
Interest Income on Sales-type Leases [Abstract]
Interest income on sales-type leases	3,904	7,602
Lease income on operating leases	24,711	15,864
Financing Receivables, Net [Abstract]
Unguaranteed residual value	6,424	9,453
Initial direct costs, net of amortization		425
Allowance for credit losses	(3,800)	(4,447)	$ (3,189)	$ (2,614)
Reported as [Abstract]
Current	61,492	106,272
Unguaranteed residual value for sales-type leases	6,424	9,453
Future scheduled minimum lease payments [Abstract]
Year ending March 31, 2023	18,444
2024	11,267
2025	6,608
2026	1,881
2027 and thereafter	588
Total	38,788
Investment in operating lease equipment - net [Abstract]
Cost of equipment under operating leases	13,044	18,748
Accumulated depreciation	(7,985)	(7,870)
Investment in operating lease equipment - net	5,059	10,878
Unguaranteed residual value of operating lease equipment net	1,700	2,500
Future scheduled minimum lease rental payments [Abstract]
Year ending March 31, 2023	2,402
2024	976
2025	173
Total	3,551
Transfers of Financial Assets [Abstract]
Operating leases	6,900	8,800
Gain on sale of financing receivables	18,200	14,500	21,800
Proceeds from sale of financing receivables	855,100	364,000	593,700
Deferred revenue for servicing obligation	500	400
Notes Payable [Member] | Asset Pledged as Collateral [Member] | Nonrecourse [Member]
Transfers of Financial Assets [Abstract]
Finance receivables	21,100	60,500
Operating leases	2,000	3,300
Notes Receivable [Member]
Financing Receivables, Net [Abstract]
Gross receivables	80,517	112,641
Unguaranteed residual value	0	0
Initial direct costs, net of amortization		425
Unearned income	(2,728)	0
Allowance for credit losses	(708)	(1,212)	(798)	(505)
Total, net	77,081	111,854
Reported as [Abstract]
Current	45,415	73,175
Long-term	31,666	38,679
Total, net	77,081	111,854
Lease Receivables [Member]
Financing Receivables, Net [Abstract]
Gross receivables	38,788	68,393
Unguaranteed residual value	9,141	14,876
Initial direct costs, net of amortization		0
Unearned income	(3,604)	(8,393)
Allowance for credit losses	(681)	(1,171)	$ (610)	$ (530)
Total, net	43,644	73,705
Reported as [Abstract]
Current	16,077	33,097
Long-term	27,567	40,608
Total, net	43,644	73,705
Financing Receivables [Member]
Financing Receivables, Net [Abstract]
Gross receivables	119,305	181,034
Unguaranteed residual value	9,141	14,876
Initial direct costs, net of amortization		425
Unearned income	(6,332)	(8,393)
Allowance for credit losses	(1,389)	(2,383)
Total, net	120,725	185,559
Reported as [Abstract]
Current	61,492	106,272
Long-term	59,233	79,287
Total, net	$ 120,725	$ 185,559