CONDENSED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (DEFICIT) (USD $)	Total	Series Fifteen [Member]	Series Sixteen [Member]	Series Seventeen [Member]	Series Eighteen [Member]	Series Nineteen [Member]	Assignees	Assignees Series Fifteen [Member]	Assignees Series Sixteen [Member]	Assignees Series Seventeen [Member]	Assignees Series Eighteen [Member]	Assignees Series Nineteen [Member]	General Partner	General Partner Series Fifteen [Member]	General Partner Series Sixteen [Member]	General Partner Series Seventeen [Member]	General Partner Series Eighteen [Member]	General Partner Series Nineteen [Member]
Partners' capital (deficit) at Mar. 31, 2011	$ (19,387,802)	$ (3,741,393)	$ (8,049,524)	$ (6,670,022)	$ (5,040,012)	$ 4,113,149	$ (17,338,646)	$ (3,381,790)	$ (7,502,420)	$ (6,182,544)	$ (4,679,384)	$ 4,407,492	$ (2,049,156)	$ (359,603)	$ (547,104)	$ (487,478)	$ (360,628)	$ (294,343)
Distributions	(261,830)	0	0	0	0	(261,830)	(259,212)	0	0	0	0	(259,212)	(2,618)	0	0	0	0	(2,618)
Net Income (Loss)	(177,715)	(120,202)	3,285	66,065	(140,819)	13,956	(175,939)	(119,000)	3,252	65,404	(139,411)	13,816	(1,776)	(1,202)	33	661	(1,408)	140
Partners' capital (deficit) at Sep. 30, 2011	(19,827,347)	(3,861,595)	(8,046,239)	(6,603,957)	(5,180,831)	3,865,275	(17,773,797)	(3,500,790)	(7,499,168)	(6,117,140)	(4,818,795)	4,162,096	(2,053,550)	(360,805)	(547,071)	(486,817)	(362,036)	(296,821)
Partners' capital (deficit) at Jun. 30, 2011
Net Income (Loss)	(101,354)	(60,374)	34,187	(56,435)	(70,572)	51,840
Partners' capital (deficit) at Sep. 30, 2011	$ (19,827,347)	$ (3,861,595)	$ (8,046,239)	$ (6,603,957)	$ (5,180,831)	$ 3,865,275