SEGMENT REPORTING (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011		Sep. 30, 2012	Sep. 30, 2011		Mar. 31, 2012
Segment Reporting Information [Line Items]
Sales of product and services	$ 250,178	$ 193,493	[1]	$ 484,460	$ 362,814	[1]
Financing revenues	7,413	7,305	[1]	15,313	14,739	[1]
Fee and other income	2,460	2,857	[1]	5,002	5,001	[1]
Total revenues	260,051	203,655	[1]	504,775	382,554	[1]
Cost of sales, product & services	205,199	158,429	[1]	399,590	299,103	[1]
Direct lease costs	2,461	2,078	[1]	4,704	4,174	[1]
Professional and other fees	2,707	2,355	[1]	5,820	4,780	[1]
Salaries and benefits	26,919	24,090	[1]	53,273	47,096	[1]
General and administrative expenses	5,411	4,507	[1]	10,066	8,540	[1]
Interest and financing costs	446	348	[1]	851	730	[1]
Total costs and expenses	243,143	191,807		474,304	364,423
Earnings before provision for income taxes	16,908	11,848	[1]	30,471	18,131	[1]
Assets	440,794	378,062		440,794	378,062		433,688
Technology Sales Business Segment [Member]
Segment Reporting Information [Line Items]
Sales of product and services	250,178	193,493		484,460	362,814
Financing revenues	0	0		0	0
Fee and other income	1,591	2,128		3,593	4,037
Total revenues	251,769	195,621		488,053	366,851
Cost of sales, product & services	205,199	158,429		399,590	299,103
Direct lease costs	0	0		0	0
Professional and other fees	2,260	1,986		4,763	4,060
Salaries and benefits	24,414	21,717		48,496	42,379
General and administrative expenses	5,011	4,267		9,450	8,034
Interest and financing costs	21	19		52	39
Total costs and expenses	236,905	186,418		462,351	353,615
Earnings before provision for income taxes	14,864	9,203		25,702	13,236
Assets	250,138	202,420		250,138	202,420
Financing Business Segment [Member]
Segment Reporting Information [Line Items]
Sales of product and services	0	0		0	0
Financing revenues	7,413	7,305		15,313	14,739
Fee and other income	869	729		1,409	964
Total revenues	8,282	8,034		16,722	15,703
Cost of sales, product & services	0	0		0	0
Direct lease costs	2,461	2,078		4,704	4,174
Professional and other fees	447	369		1,057	720
Salaries and benefits	2,505	2,373		4,777	4,717
General and administrative expenses	400	240		616	506
Interest and financing costs	425	329		799	691
Total costs and expenses	6,238	5,389		11,953	10,808
Earnings before provision for income taxes	2,044	2,645		4,769	4,895
Assets	$ 190,656	$ 175,642		$ 190,656	$ 175,642

[1] See Note 2, "Restatement of Financial Statements."