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INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Mar. 31, 2020	Aug. 24, 2015
Income Tax Examination
Expected Federal income tax (benefit)/ expense U.S. statutory rate	21.00%	21.00%
Gain on sale of discontinued operations, net of tax	$ 4	$ 8,179
Foreign tax credit carryforward	500
Change in valuation allowance	621	(7,789)
Valuation allowance	7,026	6,405
Received refunds	3,400
Delphax
Income Tax Examination
Ownership percentage			67.00%
State
Income Tax Examination
Total operating loss carryforwards	6,400
Delphax Solutions
Income Tax Examination
Change in valuation allowance	300
Delphax Technologies
Income Tax Examination
Change in valuation allowance		200
Delphax
Income Tax Examination
Change in valuation allowance	(100)	(8,900)
Delphax \| Foreign Tax Authority
Income Tax Examination
Total operating loss carryforwards	6,100
Delphax \| Foreign Tax Authority \| Research Tax Credit Carryforward
Income Tax Examination
Valuation allowance	5,000	4,800
Delphax \| Federal Tax Authority
Income Tax Examination
Total operating loss carryforwards	8,500
Discontinued Operations, Disposed of by Sale
Income Tax Examination
Income tax benefit (loss)	$ 600
Gain on sale of discontinued operations, net of tax		$ 8,200