RESERVES FOR CREDIT LOSSES (Details) (USD $)	6 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Mar. 31, 2013
Activity in reserves for credit losses [Roll Forward]
Balance	$ 5,129,000	$ 5,606,000
Provision for bad debts, net of recoveries	191,000	(70,000)
Write-offs and other	(121,000)	(51,000)
Balance	5,199,000	5,485,000
Accounts Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	1,147,000	1,307,000
Provision for bad debts, net of recoveries	152,000	(206,000)
Write-offs and other	(121,000)	(48,000)
Balance	1,178,000	1,053,000
Notes Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	3,137,000	2,963,000
Provision for bad debts, net of recoveries	(14,000)	117,000
Write-offs and other	0	0
Balance	3,123,000	3,080,000
Reserve for credit losses: [Abstract]
Ending balance: collectively evaluated for impairment	296,000		310,000
Ending balance: individually evaluated for impairment	2,827,000		2,827,000
Minimum lease payments: [Abstract]
Ending balance: collectively evaluated for impairment	48,996,000		31,793,000
Ending balance: individually evaluated for impairment	3,237,000		3,237,000
Ending balance	52,233,000		35,030,000
Lease-Related Receivables [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	845,000	1,336,000
Provision for bad debts, net of recoveries	53,000	19,000
Write-offs and other	0	(3,000)
Balance	898,000	1,352,000
Reserve for credit losses: [Abstract]
Ending balance: collectively evaluated for impairment	796,000		747,000
Ending balance: individually evaluated for impairment	102,000		98,000
Minimum lease payments: [Abstract]
Ending balance: collectively evaluated for impairment	63,131,000		64,246,000
Ending balance: individually evaluated for impairment	398,000		368,000
Ending balance	63,529,000		64,614,000
Specific Customer in Bankruptcy [Member]
Activity in reserves for credit losses [Roll Forward]
Balance			2,800,000
Balance	2,800,000		2,800,000
Minimum lease payments: [Abstract]
Notes Receivable	$ 3,300,000		$ 3,400,000