CONDENSED BALANCE SHEETS [Parenthetical] (USD $)	Sep. 30, 2013	Mar. 31, 2013
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	9,800,600	9,800,600
Units of limited partnership interest, outstanding	9,768,100	9,768,100
Series One [Member]
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	1,299,900	1,299,900
Units of limited partnership interest, outstanding	1,296,900	1,296,900
Series Two [Member]
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	830,300	830,300
Units of limited partnership interest, outstanding	829,800	829,800
Series Three [Member]
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	2,882,200	2,882,200
Units of limited partnership interest, outstanding	2,859,200	2,859,200
Series Four [Member]
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	2,995,300	2,995,300
Units of limited partnership interest, outstanding	2,989,300	2,989,300
Series Five [Member]
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	489,900	489,900
Units of limited partnership interest, outstanding	489,900	489,900
Series Six [Member]
Units of limited partnership interest, authorized	10,000,000	10,000,000
Beneficial assignee certificate, par value (in dollars per unit)	$ 10	$ 10
Units of limited partnership interest, issued	1,303,000	1,303,000
Units of limited partnership interest, outstanding	1,303,000	1,303,000

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