CONDENSED BALANCE SHEETS (USD $)	Dec. 31, 2012	Mar. 31, 2012
ASSETS
Cash and cash equivalents	$ 7,099,918	$ 4,880,195
Other assets	162,975	14,400
Assets	7,262,893	4,894,595
LIABILITIES
Accounts payable & accrued expenses	88,246	29,746
Accounts payable affiliates (Note C)	24,809,365	24,351,080
Capital contributions payable	91,360	91,360
Liabilities	24,988,971	24,472,186
PARTNERS' CAPITAL (DEFICIT)
Limited partnership interest	(15,693,538)	(17,526,537)
General Partner	(2,032,540)	(2,051,054)
Partners' capital (deficit)	(17,726,078)	(19,577,591)
Liabilities and Stockholders' Equity	7,262,893	4,894,595
Series Fifteen [Member]
ASSETS
Cash and cash equivalents	204,746	198,803
Other assets	0	0
Assets	204,746	198,803
LIABILITIES
Accounts payable & accrued expenses	17,846	1,246
Accounts payable affiliates (Note C)	3,909,626	3,805,724
Capital contributions payable	0	0
Liabilities	3,927,472	3,806,970
PARTNERS' CAPITAL (DEFICIT)
Limited partnership interest	(3,363,309)	(3,249,896)
General Partner	(359,417)	(358,271)
Partners' capital (deficit)	(3,722,726)	(3,608,167)
Liabilities and Stockholders' Equity	204,746	198,803
Series Sixteen [Member]
ASSETS
Cash and cash equivalents	292,864	360,565
Other assets	88,575	0
Assets	381,439	360,565
LIABILITIES
Accounts payable & accrued expenses	23,900	5,000
Accounts payable affiliates (Note C)	8,590,546	8,521,279
Capital contributions payable	50,008	50,008
Liabilities	8,664,454	8,576,287
PARTNERS' CAPITAL (DEFICIT)
Limited partnership interest	(7,733,576)	(7,666,956)
General Partner	(549,439)	(548,766)
Partners' capital (deficit)	(8,283,015)	(8,215,722)
Liabilities and Stockholders' Equity	381,439	360,565
Series Seventeen [Member]
ASSETS
Cash and cash equivalents	604,325	344,436
Other assets	4,400	4,400
Assets	608,725	348,836
LIABILITIES
Accounts payable & accrued expenses	22,000	18,500
Accounts payable affiliates (Note C)	7,098,711	7,003,068
Capital contributions payable	22,798	22,798
Liabilities	7,143,509	7,044,366
PARTNERS' CAPITAL (DEFICIT)
Limited partnership interest	(6,048,658)	(6,207,797)
General Partner	(486,126)	(487,733)
Partners' capital (deficit)	(6,534,784)	(6,695,530)
Liabilities and Stockholders' Equity	608,725	348,836
Series Eighteen [Member]
ASSETS
Cash and cash equivalents	970,191	164,525
Other assets	70,000	10,000
Assets	1,040,191	174,525
LIABILITIES
Accounts payable & accrued expenses	8,500	5,000
Accounts payable affiliates (Note C)	5,210,482	5,021,009
Capital contributions payable	18,554	18,554
Liabilities	5,237,536	5,044,563
PARTNERS' CAPITAL (DEFICIT)
Limited partnership interest	(3,845,144)	(4,511,110)
General Partner	(352,201)	(358,928)
Partners' capital (deficit)	(4,197,345)	(4,870,038)
Liabilities and Stockholders' Equity	1,040,191	174,525
Series Nineteen [Member]
ASSETS
Cash and cash equivalents	5,027,792	3,811,866
Other assets	0	0
Assets	5,027,792	3,811,866
LIABILITIES
Accounts payable & accrued expenses	16,000	0
Accounts payable affiliates (Note C)	0	0
Capital contributions payable	0	0
Liabilities	16,000	0
PARTNERS' CAPITAL (DEFICIT)
Limited partnership interest	5,297,149	4,109,222
General Partner	(285,357)	(297,356)
Partners' capital (deficit)	5,011,792	3,811,866
Liabilities and Stockholders' Equity	$ 5,027,792	$ 3,811,866