CONDENSED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income
Interest income	$ 88,130	$ 52,135	$ 157,936	$ 102,997
Other income	104,513	75,634	212,121	262,123
Revenues	192,643	127,769	370,057	365,120
Gain on disposition of Operating Partnerships (Note D)	6,966,046	1,430,313	11,850,663	2,619,630
Expenses
Professional fees	314,129	58,780	327,696	426,907
Fund management fee, net (Note C)	341,092	404,905	585,774	816,630
General and administrative expenses	122,855	165,278	226,337	249,562
Operating expenses	778,076	628,963	1,139,807	1,493,099
NET INCOME (LOSS)	6,380,613	929,119	11,080,913	1,491,651
Net income (loss) allocated to assignees	6,316,810	919,829	10,970,106	1,476,735
Net income (loss) allocated to general partner	$ 63,803	$ 9,290	$ 110,807	$ 14,916
Net income (loss) per BAC	$ 0.08	$ 0.01	$ 0.13	$ 0.02
Series Twenty [Member]
Income
Interest income	$ 0	$ 393	$ 0	$ 979
Other income	0	0	0	0
Revenues	0	393	0	979
Gain on disposition of Operating Partnerships (Note D)	0	0	0	155,337
Expenses
Professional fees	0	1,565	0	11,670
Fund management fee, net (Note C)	0	2,549	0	4,820
General and administrative expenses	0	7,139	0	11,119
Operating expenses	0	11,253	0	27,609
NET INCOME (LOSS)	0	(10,860)	0	128,707
Net income (loss) allocated to assignees	0	(10,751)	0	127,420
Net income (loss) allocated to general partner	$ 0	$ (109)	$ 0	$ 1,287
Net income (loss) per BAC	$ 0.00	$ 0.00	$ 0.00	$ 0.03
Series Twenty One [Member]
Income
Interest income	$ 0	$ 0	$ 0	$ 0
Other income	0	0	0	0
Revenues	0	0	0	0
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	0	0	0	0
Fund management fee, net (Note C)	0	0	0	0
General and administrative expenses	0	0	0	0
Operating expenses	0	0	0	0
NET INCOME (LOSS)	0	0	0	0
Net income (loss) allocated to assignees	0	0	0	0
Net income (loss) allocated to general partner	$ 0	$ 0	$ 0	$ 0
Net income (loss) per BAC	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Series Twenty Two [Member]
Income
Interest income	$ 0	$ 591	$ 0	$ 1,124
Other income	0	0	0	0
Revenues	0	591	0	1,124
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	0	1,565	0	11,045
Fund management fee, net (Note C)	0	6,426	0	12,352
General and administrative expenses	0	6,453	0	9,819
Operating expenses	0	14,444	0	33,216
NET INCOME (LOSS)	0	(13,853)	0	(32,092)
Net income (loss) allocated to assignees	0	(13,714)	0	(31,771)
Net income (loss) allocated to general partner	$ 0	$ (139)	$ 0	$ (321)
Net income (loss) per BAC	$ 0.00	$ (0.01)	$ 0.00	$ (0.01)
Series Twenty Three [Member]
Income
Interest income	$ 0	$ 633	$ 0	$ 1,556
Other income	0	1,977	0	3,955
Revenues	0	2,610	0	5,511
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	0	1,686	0	12,601
Fund management fee, net (Note C)	0	5,556	0	7,506
General and administrative expenses	0	6,983	0	10,844
Operating expenses	0	14,225	0	30,951
NET INCOME (LOSS)	0	(11,615)	0	(25,440)
Net income (loss) allocated to assignees	0	(11,499)	0	(25,186)
Net income (loss) allocated to general partner	$ 0	$ (116)	$ 0	$ (254)
Net income (loss) per BAC	$ 0.00	$ 0.00	$ 0.00	$ (0.01)
Series Twenty Four [Member]
Income
Interest income	$ 894	$ 528	$ 1,683	$ 1,121
Other income	0	582	1,680	582
Revenues	894	1,110	3,363	1,703
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	13,776	1,746	14,433	13,741
Fund management fee, net (Note C)	10,299	9,594	18,242	20,355
General and administrative expenses	5,732	6,116	10,515	9,281
Operating expenses	29,807	17,456	43,190	43,377
NET INCOME (LOSS)	(28,913)	(16,346)	(39,827)	(41,674)
Net income (loss) allocated to assignees	(28,624)	(16,182)	(39,429)	(41,257)
Net income (loss) allocated to general partner	$ (289)	$ (164)	$ (398)	$ (417)
Net income (loss) per BAC	$ (0.01)	$ (0.01)	$ (0.02)	$ (0.02)
Series Twenty Five [Member]
Income
Interest income	$ 0	$ 0	$ 0	$ 0
Other income	0	0	0	0
Revenues	0	0	0	0
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	0	0	0	0
Fund management fee, net (Note C)	0	0	0	0
General and administrative expenses	0	0	0	0
Operating expenses	0	0	0	0
NET INCOME (LOSS)	0	0	0	0
Net income (loss) allocated to assignees	0	0	0	0
Net income (loss) allocated to general partner	$ 0	$ 0	$ 0	$ 0
Net income (loss) per BAC	$ 0	$ 0.00	$ 0.00	$ 0.00
Series Twenty Six [Member]
Income
Interest income	$ 1,312	$ 1,023	$ 2,437	$ 1,948
Other income	0	0	420	420
Revenues	1,312	1,023	2,857	2,368
Gain on disposition of Operating Partnerships (Note D)	0	0	0	10,500
Expenses
Professional fees	16,317	2,166	16,974	20,446
Fund management fee, net (Note C)	13,938	13,938	26,876	28,547
General and administrative expenses	8,365	7,233	15,175	11,426
Operating expenses	38,620	23,337	59,025	60,419
NET INCOME (LOSS)	(37,308)	(22,314)	(56,168)	(47,551)
Net income (loss) allocated to assignees	(36,935)	(22,090)	(55,606)	(47,075)
Net income (loss) allocated to general partner	$ (373)	$ (224)	$ (562)	$ (476)
Net income (loss) per BAC	$ (0.01)	$ (0.01)	$ (0.01)	$ (0.01)
Series Twenty Seven [Member]
Income
Interest income	$ 19,771	$ 13,765	$ 40,073	$ 26,237
Other income	15,472	1,366	15,472	1,366
Revenues	35,243	15,131	55,545	27,603
Gain on disposition of Operating Partnerships (Note D)	776,922	0	776,922	0
Expenses
Professional fees	11,510	2,670	12,167	14,660
Fund management fee, net (Note C)	3,635	5,255	8,890	12,890
General and administrative expenses	5,736	6,244	10,571	9,449
Operating expenses	20,881	14,169	31,628	36,999
NET INCOME (LOSS)	791,284	962	800,839	(9,396)
Net income (loss) allocated to assignees	783,372	952	792,831	(9,302)
Net income (loss) allocated to general partner	$ 7,912	$ 10	$ 8,008	$ (94)
Net income (loss) per BAC	$ 0.32	$ 0.00	$ 0.33	$ 0.00
Series Twenty Eight [Member]
Income
Interest income	$ 1,764	$ 1,047	$ 2,976	$ 1,978
Other income	0	0	446	446
Revenues	1,764	1,047	3,422	2,424
Gain on disposition of Operating Partnerships (Note D)	7,100	0	7,100	8,500
Expenses
Professional fees	13,529	1,686	14,186	12,426
Fund management fee, net (Note C)	7,296	7,296	12,592	14,140
General and administrative expenses	7,829	7,027	14,207	10,880
Operating expenses	28,654	16,009	40,985	37,446
NET INCOME (LOSS)	(19,790)	(14,962)	(30,463)	(26,522)
Net income (loss) allocated to assignees	(19,592)	(14,813)	(30,158)	(26,257)
Net income (loss) allocated to general partner	$ (198)	$ (149)	$ (305)	$ (265)
Net income (loss) per BAC	$ 0.00	$ 0.00	$ (0.01)	$ (0.01)
Series Twenty Nine [Member]
Income
Interest income	$ 610	$ 962	$ 1,334	$ 2,207
Other income	0	0	0	0
Revenues	610	962	1,334	2,207
Gain on disposition of Operating Partnerships (Note D)	0	0	0	123,094
Expenses
Professional fees	15,795	1,866	16,452	15,121
Fund management fee, net (Note C)	7,260	7,261	14,520	22,354
General and administrative expenses	6,672	7,223	12,503	11,244
Operating expenses	29,727	16,350	43,475	48,719
NET INCOME (LOSS)	(29,117)	(15,388)	(42,141)	76,582
Net income (loss) allocated to assignees	(28,826)	(15,234)	(41,720)	75,816
Net income (loss) allocated to general partner	$ (291)	$ (154)	$ (421)	$ 766
Net income (loss) per BAC	$ (0.01)	$ 0.00	$ (0.01)	$ 0.02
Series Thirty [Member]
Income
Interest income	$ 0	$ 789	$ 0	$ 1,588
Other income	0	0	0	2,049
Revenues	0	789	0	3,637
Gain on disposition of Operating Partnerships (Note D)	0	17,549	0	41,555
Expenses
Professional fees	0	1,866	0	16,371
Fund management fee, net (Note C)	0	7,462	0	12,574
General and administrative expenses	0	6,263	0	9,423
Operating expenses	0	15,591	0	38,368
NET INCOME (LOSS)	0	2,747	0	6,824
Net income (loss) allocated to assignees	0	2,720	0	6,756
Net income (loss) allocated to general partner	$ 0	$ 27	$ 0	$ 68
Net income (loss) per BAC	$ 0.00	$ 0.00	$ 0.00	$ 0.00
Series Thirty One [Member]
Income
Interest income	$ 6,536	$ 4,528	$ 10,540	$ 8,498
Other income	0	0	0	476
Revenues	6,536	4,528	10,540	8,974
Gain on disposition of Operating Partnerships (Note D)	31,431	61,952	618,900	69,452
Expenses
Professional fees	19,370	1,986	20,027	17,126
Fund management fee, net (Note C)	0	16,535	(59,987)	34,127
General and administrative expenses	7,738	7,083	14,489	11,070
Operating expenses	27,108	25,604	(25,471)	62,323
NET INCOME (LOSS)	10,859	40,876	654,911	16,103
Net income (loss) allocated to assignees	10,751	40,467	648,362	15,942
Net income (loss) allocated to general partner	$ 108	$ 409	$ 6,549	$ 161
Net income (loss) per BAC	$ 0.00	$ 0.01	$ 0.15	$ 0.00
Series Thirty Two [Member]
Income
Interest income	$ 1,125	$ 341	$ 2,048	$ 1,611
Other income	4,320	0	4,320	0
Revenues	5,445	341	6,368	1,611
Gain on disposition of Operating Partnerships (Note D)	0	0	0	487,880
Expenses
Professional fees	15,115	1,866	16,314	15,503
Fund management fee, net (Note C)	19,794	19,794	26,588	41,881
General and administrative expenses	8,155	7,173	14,855	11,236
Operating expenses	43,064	28,833	57,757	68,620
NET INCOME (LOSS)	(37,619)	(28,492)	(51,389)	420,871
Net income (loss) allocated to assignees	(37,243)	(28,207)	(50,875)	416,662
Net income (loss) allocated to general partner	$ (376)	$ (285)	$ (514)	$ 4,209
Net income (loss) per BAC	$ (0.01)	$ (0.01)	$ (0.01)	$ 0.09
Series Thirty Three [Member]
Income
Interest income	$ 937	$ 829	$ 1,800	$ 1,772
Other income	14,427	2,536	14,427	2,536
Revenues	15,364	3,365	16,227	4,308
Gain on disposition of Operating Partnerships (Note D)	1,442,632	0	1,442,632	0
Expenses
Professional fees	13,772	1,686	14,971	13,676
Fund management fee, net (Note C)	13,316	8,898	9,214	22,216
General and administrative expenses	6,383	6,049	11,574	9,106
Operating expenses	33,471	16,633	35,759	44,998
NET INCOME (LOSS)	1,424,525	(13,268)	1,423,100	(40,690)
Net income (loss) allocated to assignees	1,410,280	(13,135)	1,408,869	(40,283)
Net income (loss) allocated to general partner	$ 14,245	$ (133)	$ 14,231	$ (407)
Net income (loss) per BAC	$ 0.54	$ (0.01)	$ 0.54	$ (0.02)
Series Thirty Four [Member]
Income
Interest income	$ 825	$ 540	$ 1,458	$ 1,134
Other income	2,100	1,539	2,100	1,539
Revenues	2,925	2,079	3,558	2,673
Gain on disposition of Operating Partnerships (Note D)	257,500	0	257,500	0
Expenses
Professional fees	12,207	1,626	12,864	11,736
Fund management fee, net (Note C)	11,496	8,166	20,861	20,532
General and administrative expenses	6,010	6,559	11,262	10,036
Operating expenses	29,713	16,351	44,987	42,304
NET INCOME (LOSS)	230,712	(14,272)	216,071	(39,631)
Net income (loss) allocated to assignees	228,405	(14,130)	213,910	(39,235)
Net income (loss) allocated to general partner	$ 2,307	$ (142)	$ 2,161	$ (396)
Net income (loss) per BAC	$ 0.07	$ 0.00	$ 0.06	$ (0.01)
Series Thirty Five [Member]
Income
Interest income	$ 13,538	$ 8,426	$ 25,729	$ 16,237
Other income	2,180	0	5,963	0
Revenues	15,718	8,426	31,692	16,237
Gain on disposition of Operating Partnerships (Note D)	141,000	0	141,000	0
Expenses
Professional fees	10,813	1,626	11,470	11,911
Fund management fee, net (Note C)	9,847	4,053	17,300	14,706
General and administrative expenses	5,943	6,499	11,126	9,942
Operating expenses	26,603	12,178	39,896	36,559
NET INCOME (LOSS)	130,115	(3,752)	132,796	(20,322)
Net income (loss) allocated to assignees	128,814	(3,715)	131,468	(20,119)
Net income (loss) allocated to general partner	$ 1,301	$ (37)	$ 1,328	$ (203)
Net income (loss) per BAC	$ 0.04	$ 0.00	$ 0.04	$ (0.01)
Series Thirty Six [Member]
Income
Interest income	$ 10,538	$ 5,249	$ 20,501	$ 9,687
Other income	0	0	0	5,119
Revenues	10,538	5,249	20,501	14,806
Gain on disposition of Operating Partnerships (Note D)	0	243,163	476,325	243,163
Expenses
Professional fees	12,135	10,708	12,792	55,250
Fund management fee, net (Note C)	2,739	5,990	7,911	11,706
General and administrative expenses	6,011	5,794	10,850	8,619
Operating expenses	20,885	22,492	31,553	75,575
NET INCOME (LOSS)	(10,347)	225,920	465,273	182,394
Net income (loss) allocated to assignees	(10,244)	223,661	460,620	180,570
Net income (loss) allocated to general partner	$ (103)	$ 2,259	$ 4,653	$ 1,824
Net income (loss) per BAC	$ 0.00	$ 0.11	$ 0.22	$ 0.09
Series Thirty Seven [Member]
Income
Interest income	$ 0	$ 717	$ 0	$ 1,527
Other income	0	0	0	21,485
Revenues	0	717	0	23,012
Gain on disposition of Operating Partnerships (Note D)	0	1,020,649	0	1,020,649
Expenses
Professional fees	0	1,566	0	11,221
Fund management fee, net (Note C)	0	3,396	0	5,562
General and administrative expenses	0	9,704	0	12,620
Operating expenses	0	14,666	0	29,403
NET INCOME (LOSS)	0	1,006,700	0	1,014,258
Net income (loss) allocated to assignees	0	996,633	0	1,004,115
Net income (loss) allocated to general partner	$ 0	$ 10,067	$ 0	$ 10,143
Net income (loss) per BAC	$ 0.00	$ 0.40	$ 0.00	$ 0.40
Series Thirty Eight [Member]
Income
Interest income	$ 9,160	$ 1,720	$ 12,362	$ 4,556
Other income	5,700	24,000	5,700	50,000
Revenues	14,860	25,720	18,062	54,556
Gain on disposition of Operating Partnerships (Note D)	0	0	1,463,974	7,000
Expenses
Professional fees	12,832	1,746	13,489	12,216
Fund management fee, net (Note C)	(258)	16,581	16,323	31,815
General and administrative expenses	5,515	6,006	10,188	9,025
Operating expenses	18,089	24,333	40,000	53,056
NET INCOME (LOSS)	(3,229)	1,387	1,442,036	8,500
Net income (loss) allocated to assignees	(3,196)	1,373	1,427,616	8,415
Net income (loss) allocated to general partner	$ (33)	$ 14	$ 14,420	$ 85
Net income (loss) per BAC	$ 0.00	$ 0.00	$ 0.56	$ 0.00
Series Thirty Nine [Member]
Income
Interest income	$ 0	$ 0	$ 0	$ 0
Other income	0	0	0	0
Revenues	0	0	0	0
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	0	0	0	0
Fund management fee, net (Note C)	0	0	0	0
General and administrative expenses	0	0	0	0
Operating expenses	0	0	0	0
NET INCOME (LOSS)	0	0	0	0
Net income (loss) allocated to assignees	0	0	0	0
Net income (loss) allocated to general partner	$ 0	$ 0	$ 0	$ 0
Net income (loss) per BAC	$ 0	$ 0.00	$ 0.00	$ 0.00
Series Forty [Member]
Income
Interest income	$ 637	$ 787	$ 1,332	$ 1,418
Other income	6,639	1,250	6,639	1,250
Revenues	7,276	2,037	7,971	2,668
Gain on disposition of Operating Partnerships (Note D)	2,554,005	44,500	2,554,005	44,500
Expenses
Professional fees	17,624	2,046	18,281	16,741
Fund management fee, net (Note C)	19,612	21,194	33,102	45,638
General and administrative expenses	5,498	6,017	10,152	9,248
Operating expenses	42,734	29,257	61,535	71,627
NET INCOME (LOSS)	2,518,547	17,280	2,500,441	(24,459)
Net income (loss) allocated to assignees	2,493,362	17,108	2,475,437	(24,214)
Net income (loss) allocated to general partner	$ 25,185	$ 172	$ 25,004	$ (245)
Net income (loss) per BAC	$ 0.95	$ 0.01	$ 0.95	$ (0.01)
Series Forty One [Member]
Income
Interest income	$ 878	$ 875	$ 1,683	$ 2,077
Other income	1,302	0	47,364	41,340
Revenues	2,180	875	49,047	43,417
Gain on disposition of Operating Partnerships (Note D)	0	0	0	14,000
Expenses
Professional fees	18,902	2,466	19,559	24,071
Fund management fee, net (Note C)	31,714	34,076	52,295	57,860
General and administrative expenses	5,881	10,538	10,890	14,061
Operating expenses	56,497	47,080	82,744	95,992
NET INCOME (LOSS)	(54,317)	(46,205)	(33,697)	(38,575)
Net income (loss) allocated to assignees	(53,774)	(45,743)	(33,360)	(38,189)
Net income (loss) allocated to general partner	$ (543)	$ (462)	$ (337)	$ (386)
Net income (loss) per BAC	$ (0.02)	$ (0.02)	$ (0.01)	$ (0.01)
Series Forty Two [Member]
Income
Interest income	$ 4,826	$ 3,873	$ 9,597	$ 6,986
Other income	4,715	290	9,569	6,591
Revenues	9,541	4,163	19,166	13,577
Gain on disposition of Operating Partnerships (Note D)	0	42,500	0	42,500
Expenses
Professional fees	21,209	2,286	21,866	21,826
Fund management fee, net (Note C)	23,338	15,249	45,624	33,396
General and administrative expenses	5,708	6,129	10,535	9,319
Operating expenses	50,255	23,664	78,025	64,541
NET INCOME (LOSS)	(40,714)	22,999	(58,859)	(8,464)
Net income (loss) allocated to assignees	(40,306)	22,769	(58,270)	(8,379)
Net income (loss) allocated to general partner	$ (408)	$ 230	$ (589)	$ (85)
Net income (loss) per BAC	$ (0.01)	$ 0.01	$ (0.02)	$ 0.00
Series Forty Three [Member]
Income
Interest income	$ 5,746	$ 1,360	$ 7,835	$ 3,296
Other income	4,988	639	5,862	49,644
Revenues	10,734	1,999	13,697	52,940
Gain on disposition of Operating Partnerships (Note D)	195,000	0	1,255,582	9,000
Expenses
Professional fees	24,014	2,526	24,671	23,336
Fund management fee, net (Note C)	20,125	44,591	46,236	72,674
General and administrative expenses	6,184	7,508	11,542	11,236
Operating expenses	50,323	54,625	82,449	107,246
NET INCOME (LOSS)	155,411	(52,626)	1,186,830	(45,306)
Net income (loss) allocated to assignees	153,857	(52,100)	1,174,962	(44,853)
Net income (loss) allocated to general partner	$ 1,554	$ (526)	$ 11,868	$ (453)
Net income (loss) per BAC	$ 0.04	$ (0.01)	$ 0.32	$ (0.01)
Series Forty Four [Member]
Income
Interest income	$ 4,319	$ 99	$ 4,904	$ 244
Other income	11,961	13,800	12,756	13,800
Revenues	16,280	13,899	17,660	14,044
Gain on disposition of Operating Partnerships (Note D)	1,560,456	0	2,856,723	0
Expenses
Professional fees	14,791	1,926	15,448	14,286
Fund management fee, net (Note C)	37,351	46,192	85,282	90,656
General and administrative expenses	5,658	6,159	10,506	9,339
Operating expenses	57,800	54,277	111,236	114,281
NET INCOME (LOSS)	1,518,936	(40,378)	2,763,147	(100,237)
Net income (loss) allocated to assignees	1,503,747	(39,975)	2,735,516	(99,235)
Net income (loss) allocated to general partner	$ 15,189	$ (403)	$ 27,631	$ (1,002)
Net income (loss) per BAC	$ 0.56	$ (0.01)	$ 1.02	$ (0.04)
Series Forty Five [Member]
Income
Interest income	$ 3,625	$ 2,148	$ 7,453	$ 3,593
Other income	8,725	4,116	31,039	26,321
Revenues	12,350	6,264	38,492	29,914
Gain on disposition of Operating Partnerships (Note D)	0	0	0	342,500
Expenses
Professional fees	31,242	5,678	31,899	31,291
Fund management fee, net (Note C)	59,591	47,015	109,435	104,532
General and administrative expenses	7,853	6,982	14,278	11,361
Operating expenses	98,686	59,675	155,612	147,184
NET INCOME (LOSS)	(86,336)	(53,411)	(117,120)	225,230
Net income (loss) allocated to assignees	(85,473)	(52,877)	(115,949)	222,978
Net income (loss) allocated to general partner	$ (863)	$ (534)	$ (1,171)	$ 2,252
Net income (loss) per BAC	$ (0.02)	$ (0.01)	$ (0.03)	$ 0.06
Series Forty Six [Member]
Income
Interest income	$ 1,089	$ 912	$ 2,191	$ 1,623
Other income	21,984	23,539	48,364	33,204
Revenues	23,073	24,451	50,555	34,827
Gain on disposition of Operating Partnerships (Note D)	0	0	0	0
Expenses
Professional fees	19,176	2,226	19,833	18,636
Fund management fee, net (Note C)	49,999	47,838	94,470	93,791
General and administrative expenses	5,984	6,397	11,119	9,859
Operating expenses	75,159	56,461	125,422	122,286
NET INCOME (LOSS)	(52,086)	(32,010)	(74,867)	(87,459)
Net income (loss) allocated to assignees	(51,565)	(31,689)	(74,118)	(86,584)
Net income (loss) allocated to general partner	$ (521)	$ (321)	$ (749)	$ (875)
Net income (loss) per BAC	$ (0.02)	$ (0.01)	$ (0.02)	$ (0.03)