SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013
Segment Reporting Information [Line Items]
Sales of product and services	$ 261,283	$ 250,178	$ 508,320	$ 484,460
Financing revenues	8,001	7,413	18,761	15,313
Fee and other income	1,845	2,460	3,365	5,002
TOTAL REVENUES	271,129	260,051	530,446	504,775
Cost of sales, product & services	214,854	205,199	418,184	399,590
Direct lease costs	3,495	2,461	6,748	4,704
Professional and other fees	1,908	2,707	5,146	5,820
Salaries and benefits	29,685	26,919	60,367	53,273
General and administrative expenses	6,059	5,411	11,060	10,066
Interest and financing costs	433	446	893	851
Total costs and expenses	256,434	243,143	502,398	474,304
Earnings before provision for income taxes	14,695	16,908	28,048	30,471
Total assets	465,301	440,794	465,301	440,794	437,872
Technology Sales Business Segment [Member]
Segment Reporting Information [Line Items]
Sales of product and services	261,283	250,178	508,320	484,460
Financing revenues	0	0	0	0
Fee and other income	1,829	1,591	3,286	3,593
TOTAL REVENUES	263,112	251,769	511,606	488,053
Cost of sales, product & services	214,854	205,199	418,184	399,590
Direct lease costs	0	0	0	0
Professional and other fees	1,580	2,260	4,443	4,763
Salaries and benefits	27,244	24,414	55,142	48,496
General and administrative expenses	5,701	5,011	10,515	9,450
Interest and financing costs	26	21	46	52
Total costs and expenses	249,405	236,905	488,330	462,351
Earnings before provision for income taxes	13,707	14,864	23,276	25,702
Total assets	269,149	250,138	269,149	250,138
Financing Business Segment [Member]
Segment Reporting Information [Line Items]
Sales of product and services	0	0	0	0
Financing revenues	8,001	7,413	18,761	15,313
Fee and other income	16	869	79	1,409
TOTAL REVENUES	8,017	8,282	18,840	16,722
Cost of sales, product & services	0	0	0	0
Direct lease costs	3,495	2,461	6,748	4,704
Professional and other fees	328	447	703	1,057
Salaries and benefits	2,441	2,505	5,225	4,777
General and administrative expenses	358	400	545	616
Interest and financing costs	407	425	847	799
Total costs and expenses	7,029	6,238	14,068	11,953
Earnings before provision for income taxes	988	2,044	4,772	4,769
Total assets	$ 196,152	$ 190,656	$ 196,152	$ 190,656