CONDENSED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (DEFICIT) (USD $)	Series Fifteen Assignees	Series Fifteen General Partner	Series Fifteen	Series Sixteen Assignees	Series Sixteen General Partner	Series Sixteen	Series Seventeen Assignees	Series Seventeen General Partner	Series Seventeen	Series Eighteen Assignees	Series Eighteen General Partner	Series Eighteen	Series Nineteen Assignees	Series Nineteen General Partner	Series Nineteen	Assignees	General Partner	Total
Partners' capital (deficit) at Mar. 31, 2011	$ (3,381,790)	$ (359,603)	$ (3,741,393)	$ (7,502,420)	$ (547,104)	$ (8,049,524)	$ (6,182,544)	$ (487,478)	$ (6,670,022)	$ (4,679,384)	$ (360,628)	$ (5,040,012)	$ 4,407,492	$ (294,343)	$ 4,113,149	$ (17,338,646)	$ (2,049,156)	$ (19,387,802)
Net income (Loss)	(59,230)	(598)	(59,828)	(30,594)	(309)	(30,903)	121,273	1,225	122,498	(69,545)	(702)	(70,247)	(37,506)	(379)	(37,885)	(75,602)	(763)	(76,365)
Partners' capital (deficit) at Jun. 30, 2011	$ (3,441,020)	$ (360,201)	$ (3,801,221)	$ (7,533,014)	$ (547,413)	$ (8,080,427)	$ (6,061,271)	$ (486,253)	$ (6,547,524)	$ (4,748,929)	$ (361,330)	$ (5,110,259)	$ 4,369,986	$ (294,722)	$ 4,075,264	$ (17,414,248)	$ (2,049,919)	$ (19,464,167)