SEGMENT REPORTING (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2015 USD ($) Segment	Dec. 31, 2014 USD ($)	Mar. 31, 2015 USD ($)
SEGMENT REPORTING [Abstract]
Number of business segments | Segment			2
Segment Reporting Information [Line Items]
Sales of product and services	$ 287,859	$ 295,679	$ 871,814	$ 843,619
Financing revenue	9,289	8,406	27,914	26,339
Fee and other income	1,496	2,156	5,068	6,059
Net sales	298,644	306,241	904,796	876,017
Cost of sales, product and services	231,503	238,202	700,429	681,852
Direct lease costs	3,081	2,601	9,256	8,364
Cost of sales	234,584	240,803	709,685	690,216
Professional and other fees	1,882	1,436	4,913	4,846
Salaries and benefits	37,372	35,632	108,326	102,831
General and administrative expenses	6,765	7,233	21,129	20,664
Interest and financing costs	396	575	1,371	1,830
Operating expenses	46,415	44,876	135,739	130,171
Operating income	17,645	20,562	59,372	55,630
Other income	0	6,169	0	7,603
Earnings before tax	17,645	26,731	59,372	63,233
Depreciation and amortization	4,405	3,810	12,971	11,441
Purchases of property, equipment and operating lease equipment	1,390	5,620	17,008	7,571
Total assets	630,434	591,365	630,434	591,365	$ 571,546
Operating Segments [Member] | Technology [Member]
Segment Reporting Information [Line Items]
Sales of product and services	287,859	295,679	871,814	843,619
Financing revenue	0	0	0	0
Fee and other income	1,506	2,140	5,038	5,969
Net sales	289,365	297,819	876,852	849,588
Cost of sales, product and services	231,503	238,202	700,429	681,852
Direct lease costs	0	0	0	0
Cost of sales	231,503	238,202	700,429	681,852
Professional and other fees	1,608	1,158	4,175	4,065
Salaries and benefits	35,043	33,507	101,471	96,140
General and administrative expenses	6,530	6,918	20,381	19,379
Interest and financing costs	10	19	51	77
Operating expenses	43,191	41,602	126,078	119,661
Operating income	14,671	18,015	50,345	48,075
Other income	0	0	0	0
Earnings before tax	14,671	18,015	50,345	48,075
Depreciation and amortization	1,327	1,244	3,728	3,219
Purchases of property, equipment and operating lease equipment	506	1,846	1,700	2,932
Total assets	401,422	366,740	401,422	366,740
Operating Segments [Member] | Financing [Member]
Segment Reporting Information [Line Items]
Sales of product and services	0	0	0	0
Financing revenue	9,289	8,406	27,914	26,339
Fee and other income	(10)	16	30	90
Net sales	9,279	8,422	27,944	26,429
Cost of sales, product and services	0	0	0	0
Direct lease costs	3,081	2,601	9,256	8,364
Cost of sales	3,081	2,601	9,256	8,364
Professional and other fees	274	278	738	781
Salaries and benefits	2,329	2,125	6,855	6,691
General and administrative expenses	235	315	748	1,285
Interest and financing costs	386	556	1,320	1,753
Operating expenses	3,224	3,274	9,661	10,510
Operating income	2,974	2,547	9,027	7,555
Other income	0	6,169	0	7,603
Earnings before tax	2,974	8,716	9,027	15,158
Depreciation and amortization	3,078	2,566	9,243	8,222
Purchases of property, equipment and operating lease equipment	884	3,774	15,308	4,639
Total assets	$ 229,012	$ 224,625	$ 229,012	$ 224,625