SEGMENT REPORTING, Reportable Segment Information (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2023 USD ($) Segment	Jun. 30, 2022 USD ($)	Mar. 31, 2023 Segment
SEGMENT REPORTING [Abstract]
Number of business segments | Segment	4		2
Reportable Segment Information [Abstract]
Net sales	$ 574,175	$ 458,359
Gross profit	142,273	113,523
Operating income	46,332	33,183
Other income (expense), net	190	(2,153)
Earnings before tax	46,522	31,030
Depreciation and amortization	4,792	3,210
Interest and financing costs	851	363
Selected Financial Data - Statement of Cash Flow [Abstract]
Purchases of property, equipment and operating lease equipment	3,698	1,777
Technology Segment [Member]
Reportable Segment Information [Abstract]
Net sales	565,685	448,785
Product Segment [Member]
Reportable Segment Information [Abstract]
Net sales	498,166	385,676
Professional Services Segment [Member]
Reportable Segment Information [Abstract]
Net sales	35,556	37,168
Managed Services Segment [Member]
Reportable Segment Information [Abstract]
Net sales	31,963	25,941
Financing Segment [Member]
Reportable Segment Information [Abstract]
Net sales	8,490	9,574
Operating Segments [Member] | Technology Segment [Member]
Reportable Segment Information [Abstract]
Operating income	43,498	29,219
Depreciation and amortization	4,764	3,182
Interest and financing costs	550	138
Selected Financial Data - Statement of Cash Flow [Abstract]
Purchases of property, equipment and operating lease equipment	2,785	1,286
Operating Segments [Member] | Product Segment [Member]
Reportable Segment Information [Abstract]
Net sales	498,166	385,676
Gross profit	111,391	83,168
Operating Segments [Member] | Professional Services Segment [Member]
Reportable Segment Information [Abstract]
Net sales	35,556	37,168
Gross profit	14,724	15,055
Operating Segments [Member] | Managed Services Segment [Member]
Reportable Segment Information [Abstract]
Net sales	31,963	25,941
Gross profit	9,797	7,428
Operating Segments [Member] | Financing Segment [Member]
Reportable Segment Information [Abstract]
Net sales	8,490	9,574
Gross profit	6,361	7,872
Operating income	2,834	3,964
Depreciation and amortization	28	28
Interest and financing costs	301	225
Selected Financial Data - Statement of Cash Flow [Abstract]
Purchases of property, equipment and operating lease equipment	$ 913	$ 491