CONDENSED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income
Interest income	$ 808	$ 2,565	$ 1,616	$ 3,842
Other income	16,812	4,504	26,440	21,125
Total income	17,620	7,069	28,056	24,967
Share of Income from Operating Partnerships (Note D)	170,961	434,761	318,584	6,285,489
Expenses
Professional fees	97,181	102,247	123,483	128,887
Fund management fee, net (Note C)	89,842	99,876	172,181	109,688
General and administrative expenses	97,198	29,574	135,499	46,963
Operating expenses	284,221	231,697	431,163	285,538
NET INCOME (LOSS)	(95,640)	210,133	(84,523)	6,024,918
Net income (loss) allocated to limited assignees	(94,683)	208,032	(83,678)	5,964,669
Net income (loss) allocated to general partner	$ (957)	$ 2,101	$ (845)	$ 60,249
Net income (loss) per BAC (in dollars per share)	$ 0.00	$ 0.01	$ (0.00)	$ 0.27
Series Fifteen [Member]
Income
Interest income	$ 114	$ 252	$ 262	$ 437
Other income	321	321	321	321
Total income	435	573	583	758
Share of Income from Operating Partnerships (Note D)	0	9,322	0	335,091
Expenses
Professional fees	22,614	23,168	28,518	29,288
Fund management fee, net (Note C)	5,777	6,527	8,092	(51,509)
General and administrative expenses	18,031	5,561	24,516	8,927
Operating expenses	46,422	35,256	61,126	(13,294)
NET INCOME (LOSS)	(45,987)	(25,361)	(60,543)	349,143
Net income (loss) allocated to limited assignees	(45,527)	(25,107)	(59,938)	345,652
Net income (loss) allocated to general partner	$ (460)	$ (254)	$ (605)	$ 3,491
Net income (loss) per BAC (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.02)	$ 0.09
Series Sixteen [Member]
Income
Interest income	$ 258	$ 136	$ 470	$ 257
Other income	0	0	603	401
Total income	258	136	1,073	658
Share of Income from Operating Partnerships (Note D)	168,461	243,000	316,084	243,000
Expenses
Professional fees	22,397	26,161	28,896	32,941
Fund management fee, net (Note C)	31,815	37,720	61,010	76,010
General and administrative expenses	23,787	6,775	31,962	10,729
Operating expenses	77,999	70,656	121,868	119,680
NET INCOME (LOSS)	90,720	172,480	195,289	123,978
Net income (loss) allocated to limited assignees	89,813	170,755	193,336	122,738
Net income (loss) allocated to general partner	$ 907	$ 1,725	$ 1,953	$ 1,240
Net income (loss) per BAC (in dollars per share)	$ 0.02	$ 0.03	$ 0.04	$ 0.02
Series Seventeen [Member]
Income
Interest income	$ 272	$ 1,518	$ 542	$ 1,832
Other income	2,558	4,183	11,500	20,320
Total income	2,830	5,701	12,042	22,152
Share of Income from Operating Partnerships (Note D)	2,500	167,145	2,500	5,692,104
Expenses
Professional fees	20,211	19,173	25,267	24,303
Fund management fee, net (Note C)	22,603	23,632	42,535	21,943
General and administrative expenses	20,654	6,406	30,321	10,002
Operating expenses	63,468	49,211	98,123	56,248
NET INCOME (LOSS)	(58,138)	123,635	(83,581)	5,658,008
Net income (loss) allocated to limited assignees	(57,557)	122,399	(82,745)	5,601,428
Net income (loss) allocated to general partner	$ (581)	$ 1,236	$ (836)	$ 56,580
Net income (loss) per BAC (in dollars per share)	$ (0.01)	$ 0.02	$ (0.02)	$ 1.12
Series Eighteen [Member]
Income
Interest income	$ 78	$ 152	$ 163	$ 309
Other income	13,933	0	13,933	0
Total income	14,011	152	14,096	309
Share of Income from Operating Partnerships (Note D)	0	15,294	0	15,294
Expenses
Professional fees	17,460	20,228	22,482	25,358
Fund management fee, net (Note C)	22,354	23,204	45,208	46,408
General and administrative expenses	16,058	5,109	21,967	8,245
Operating expenses	55,872	48,541	89,657	80,011
NET INCOME (LOSS)	(41,861)	(33,095)	(75,561)	(64,408)
Net income (loss) allocated to limited assignees	(41,442)	(32,764)	(74,805)	(63,764)
Net income (loss) allocated to general partner	$ (419)	$ (331)	$ (756)	$ (644)
Net income (loss) per BAC (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.02)	$ (0.02)
Series Nineteen [Member]
Income
Interest income	$ 86	$ 507	$ 179	$ 1,007
Other income	0	0	83	83
Total income	86	507	262	1,090
Share of Income from Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	14,499	13,517	18,320	16,997
Fund management fee, net (Note C)	7,293	8,793	15,336	16,836
General and administrative expenses	18,668	5,723	26,733	9,060
Operating expenses	40,460	28,033	60,389	42,893
NET INCOME (LOSS)	(40,374)	(27,526)	(60,127)	(41,803)
Net income (loss) allocated to limited assignees	(39,970)	(27,251)	(59,526)	(41,385)
Net income (loss) allocated to general partner	$ (404)	$ (275)	$ (601)	$ (418)
Net income (loss) per BAC (in dollars per share)	$ (0.01)	$ (0.01)	$ (0.01)	$ (0.01)