RESERVES FOR CREDIT LOSSES (Details) (USD $)	12 Months Ended
	Mar. 31, 2015		Mar. 31, 2014		Mar. 31, 2013
Activity in reserves for credit losses [Roll Forward]
Balance	$ 5,752,000		$ 5,129,000		$ 5,606,000
Provision for credit losses	125,000		750,000		(333,000)
Write-offs and other	(254,000)		(127,000)		(144,000)
Balance	5,623,000		5,752,000		5,129,000
Reserve for credit losses [Abstract]
Ending balance	5,623,000		5,752,000		5,129,000
Minimum payments [Abstract]
Ending balance: individually evaluated for impairment	3,600,000
Total receivable	218,458,000		211,314,000
Accounts Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	1,364,000		1,147,000		1,307,000
Provision for credit losses	28,000		344,000		(19,000)
Write-offs and other	(223,000)		(127,000)		(141,000)
Balance	1,169,000		1,364,000		1,147,000
Reserve for credit losses [Abstract]
Ending balance	1,169,000		1,364,000		1,147,000
Notes Receivable [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	3,364,000	[1]	3,137,000		2,963,000
Provision for credit losses	209,000		227,000		174,000
Write-offs and other	0		0		0
Balance	3,573,000	[1]	3,364,000	[1]	3,137,000
Reserve for credit losses [Abstract]
Ending balance: collectively evaluated for impairment	440,000		265,000
Ending balance: individually evaluated for impairment	3,133,000		3,099,000
Ending balance	3,573,000	[1]	3,364,000	[1]	3,137,000
Minimum payments [Abstract]
Ending balance: collectively evaluated for impairment	56,525,000		39,869,000
Ending balance: individually evaluated for impairment	3,418,000		3,838,000
Ending balance	59,943,000		43,707,000
Lease-Related Receivables [Member]
Activity in reserves for credit losses [Roll Forward]
Balance	1,024,000	[1]	845,000		1,336,000
Provision for credit losses	(112,000)		179,000		(488,000)
Write-offs and other	(31,000)		0		(3,000)
Balance	881,000	[1]	1,024,000	[1]	845,000
Reserve for credit losses [Abstract]
Ending balance: collectively evaluated for impairment	740,000		852,000
Ending balance: individually evaluated for impairment	141,000		172,000
Ending balance	881,000	[1]	1,024,000	[1]	845,000
Minimum payments [Abstract]
Ending balance: collectively evaluated for impairment	66,255,000		81,114,000
Ending balance: individually evaluated for impairment	160,000		437,000
Ending balance	66,415,000		81,551,000
Large law firm [Member]
Minimum payments [Abstract]
Notes receivable	3,200,000		3,400,000
Total receivable	3,200,000		3,100,000
Customer [Member]
Minimum payments [Abstract]
Ending balance: individually evaluated for impairment	$ 3,100,000

[1] For details on reserve for credit losses, refer to Note 4, "Reserves for Credit Losses."