ORGANIZATION (Details Textual) - USD ($)	Sep. 04, 1993	Jun. 30, 2015	Mar. 31, 2015
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized		22,000,000	22,000,000
Beneficial assignee certificate, par value (in dollars per share)	$ 10	$ 10	$ 10
Limited Partners' Capital Account, Units Issued		21,996,102	21,996,102
Limited Partners Capital Account, Units Outstanding		21,936,787	21,936,787
Limited Partners Capital Account Additional Units Registered For Sale	2,000,000
Series Fifteen [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized		22,000,000	22,000,000
Beneficial assignee certificate, par value (in dollars per share)		$ 10	$ 10
Limited Partners' Capital Account, Units Issued		3,870,500	3,870,500
Limited Partners Capital Accounts Units Issued Value		$ 38,705,000
Limited Partners Capital Account, Units Outstanding		3,858,400	3,858,400
Series Sixteen [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized		22,000,000	22,000,000
Beneficial assignee certificate, par value (in dollars per share)		$ 10	$ 10
Limited Partners' Capital Account, Units Issued		5,429,402	5,429,402
Limited Partners Capital Accounts Units Issued Value		$ 54,293,000
Limited Partners Capital Account, Units Outstanding		5,411,800	5,411,800
Series Seventeen [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized		22,000,000	22,000,000
Beneficial assignee certificate, par value (in dollars per share)		$ 10	$ 10
Limited Partners' Capital Account, Units Issued		5,000,000	5,000,000
Limited Partners Capital Accounts Units Issued Value		$ 50,000,000
Limited Partners Capital Account, Units Outstanding		4,980,687	4,980,687
Series Eighteen [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized		22,000,000	22,000,000
Beneficial assignee certificate, par value (in dollars per share)		$ 10	$ 10
Limited Partners' Capital Account, Units Issued		3,616,200	3,616,200
Limited Partners Capital Accounts Units Issued Value		$ 36,162,000
Limited Partners Capital Account, Units Outstanding		3,612,200	3,612,200
Series Nineteen [Member]
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized		22,000,000	22,000,000
Beneficial assignee certificate, par value (in dollars per share)		$ 10	$ 10
Limited Partners' Capital Account, Units Issued		4,080,000	4,080,000
Limited Partners Capital Accounts Units Issued Value		$ 40,800,000
Limited Partners Capital Account, Units Outstanding		4,073,700	4,073,700