CONDENSED STATEMENTS OF CHANGES IN PARTNERS' CAPITAL (DEFICIT) - USD ($)	Series 15 Assignees	Series 15 General partner	Series 15	Series 16 Assignees	Series 16 General partner	Series 16	Series 17 Assignees	Series 17 General partner	Series 17	Series 18 Assignees	Series 18 General partner	Series 18	Series 19 Assignees	Series 19 General partner	Series 19	Assignees	General partner	Total
Balance at the Beginning at Mar. 31, 2018	$ (2,440,269)	$ (350,093)	$ (2,790,362)	$ (7,029,717)	$ (542,328)	$ (7,572,045)	$ 895,356	$ (366,923)	$ 528,433	$ (3,137,537)	$ (345,054)	$ (3,482,591)	$ 463,693	$ (282,687)	$ 181,006	$ (11,248,474)	$ (1,887,085)	$ (13,135,559)
Net income (loss)	(16,567)	(167)	(16,734)	(40,053)	(405)	(40,458)	(22,992)	(232)	(23,224)	771,574	7,794	779,368	(8,392)	(85)	(8,477)	683,570	6,905	690,475
Balance at the Ending at Jun. 30, 2018	(2,456,836)	(350,260)	(2,807,096)	(7,069,770)	(542,733)	(7,612,503)	872,364	(367,155)	505,209	(2,365,963)	(337,260)	(2,703,223)	455,301	(282,772)	172,529	(10,564,904)	(1,880,180)	(12,445,084)
Balance at the Beginning at Mar. 31, 2018	(2,440,269)	(350,093)	(2,790,362)	(7,029,717)	(542,328)	(7,572,045)	895,356	(366,923)	528,433	(3,137,537)	(345,054)	(3,482,591)	463,693	(282,687)	181,006	(11,248,474)	(1,887,085)	(13,135,559)
Net income (loss)			(35,236)			(65,997)			53,830			755,608			(19,978)			688,227
Balance at the Ending at Sep. 30, 2018	(2,475,153)	(350,445)	(2,825,598)	(7,095,054)	(542,988)	(7,638,042)	948,648	(366,385)	582,263	(2,389,485)	(337,498)	(2,726,983)	443,915	(282,887)	161,028	(10,567,129)	(1,880,203)	(12,447,332)
Balance at the Beginning at Jun. 30, 2018	(2,456,836)	(350,260)	(2,807,096)	(7,069,770)	(542,733)	(7,612,503)	872,364	(367,155)	505,209	(2,365,963)	(337,260)	(2,703,223)	455,301	(282,772)	172,529	(10,564,904)	(1,880,180)	(12,445,084)
Net income (loss)	(18,317)	(185)	(18,502)	(25,284)	(255)	(25,539)	76,284	770	77,054	(23,522)	(238)	(23,760)	(11,386)	(115)	(11,501)	(2,225)	(23)	(2,248)
Balance at the Ending at Sep. 30, 2018	(2,475,153)	(350,445)	(2,825,598)	(7,095,054)	(542,988)	(7,638,042)	948,648	(366,385)	582,263	(2,389,485)	(337,498)	(2,726,983)	443,915	(282,887)	161,028	(10,567,129)	(1,880,203)	(12,447,332)
Balance at the Beginning at Mar. 31, 2019	(2,439,314)	2,439,314	0	(7,082,013)	(542,856)	(7,624,869)	971,233	(366,157)	605,076	(2,390,390)	(337,507)	(2,727,897)	283,361	(283,361)	0	(10,657,123)	909,433	(9,747,690)
Net income (loss)	0	0	0	(22,175)	(224)	(22,399)	(12,928)	(131)	(13,059)	(19,420)	(196)	(19,616)	0	0	0	(54,523)	(551)	(55,074)
Balance at the Ending at Jun. 30, 2019	(2,439,314)	2,439,314	0	(7,104,188)	(543,080)	(7,647,268)	958,305	(366,288)	592,017	(2,409,810)	(337,703)	(2,747,513)	283,361	(283,361)	0	(10,711,646)	908,882	(9,802,764)
Balance at the Beginning at Mar. 31, 2019	(2,439,314)	2,439,314	0	(7,082,013)	(542,856)	(7,624,869)	971,233	(366,157)	605,076	(2,390,390)	(337,507)	(2,727,897)	283,361	(283,361)	0	(10,657,123)	909,433	(9,747,690)
Net income (loss)			0			(21,267)			(44,966)			(48,817)			0			(115,050)
Balance at the Ending at Sep. 30, 2019	(2,439,314)	2,439,314	0	(7,103,067)	(543,069)	(7,646,136)	926,717	(366,607)	560,110	(2,438,719)	(337,995)	(2,776,714)	283,361	(283,361)	0	(10,771,022)	908,282	(9,862,740)
Balance at the Beginning at Jun. 30, 2019	(2,439,314)	2,439,314	0	(7,104,188)	(543,080)	(7,647,268)	958,305	(366,288)	592,017	(2,409,810)	(337,703)	(2,747,513)	283,361	(283,361)	0	(10,711,646)	908,882	(9,802,764)
Net income (loss)	0	0	0	1,121	11	1,132	(31,588)	(319)	(31,907)	(28,909)	(292)	(29,201)	0	0	0	(59,376)	(600)	(59,976)
Balance at the Ending at Sep. 30, 2019	$ (2,439,314)	$ 2,439,314	$ 0	$ (7,103,067)	$ (543,069)	$ (7,646,136)	$ 926,717	$ (366,607)	$ 560,110	$ (2,438,719)	$ (337,995)	$ (2,776,714)	$ 283,361	$ (283,361)	$ 0	$ (10,771,022)	$ 908,282	$ (9,862,740)