ORGANIZATION (Details Textual) - USD ($)	Sep. 04, 1993	Sep. 30, 2016	Mar. 31, 2016
Organization And Summary Of Significant Accounting Policies [Line Items]
Units of limited partnership interest, authorized	20,000,000	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		21,902,747	21,902,747
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		3,848,900	3,848,900
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		5,404,500	5,404,500
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		4,972,947	4,972,947
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		3,605,200	3,605,200
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		4,071,200	4,071,200