NOTES PAYABLE AND CREDIT FACILITY (Details) (USD $)	3 Months Ended		3 Months Ended									3 Months Ended	12 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2012 GECDF [Member]	Jul. 31, 2012 GECDF [Member]	Jun. 30, 2012 First Commonwealth Bank of Virginia [Member]	Jun. 30, 2012 Maximum [Member]	Jun. 30, 2012 Minimum [Member]	Jun. 30, 2012 Account receivable component [Member]	Mar. 31, 2012 Account receivable component [Member]	Jun. 30, 2012 Floor plan component [Member]	Mar. 31, 2012 Floor plan component [Member]	Jun. 30, 2012 Non Recourse Note Payable [Member]	Mar. 31, 2012 Non Recourse Note Payable [Member]
Recourse and Non Recourse Notes Payable [Line Items]
Recourse notes payable	$ 1,727,000	$ 1,727,000										$ 1,727,000	$ 1,727,000
Non-recourse notes payable	32,780,000	26,328,000										32,780,000	26,328,000
Interest rate of recourse note , stated (in hundredths)	4.84%
Interest rate of non recourse note , minimum (in hundredths)												2.58%
Interest rate of non recourse note , maximum (in hundredths)													9.50%
Weighted average interest rate of non recourse note (in hundredths)												4.91%	5.15%
Number of components under GECDF credit facility			2
Accounts payable under floor plan component	0	0		175,000,000	500,000			0	0	97,400,000	85,900,000
Amount outstanding under accounts receivable component	0	0		175,000,000	500,000			0	0	97,400,000	85,900,000
Maximum amount can be borrowed under credit facility			125,000,000					30,000,000
Reference rate of credit facility	U.S. Prime rate
Basis spread on reference rate (in hundredths)					1.00%	4.75%	0.50%
Period of notice required to terminate credit facility (in days)	90D
Guarantor obligations for credit facility, maximum			10,500,000
Cash, short-term investments and net availability, minimum	15,000,000
Period for earnings before interest, taxes, depreciation and amortization of revenue	12 months
Earnings before interest, taxes, depreciation and amortization as percentage of revenue, minimum (in hundredths)	1.50%
Amount outstanding under credit facility	$ 0	$ 0		$ 175,000,000	$ 500,000			$ 0	$ 0	$ 97,400,000	$ 85,900,000
Renewed period of credit facility	2 years