CONDENSED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		9 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Income
Interest income	$ 4,942	$ 6,499	$ 15,281	$ 21,060
Other income	30,391	2,226	63,193	28,450
Revenues	35,333	8,725	78,474	49,510
Share of Income from Operating Partnerships(Note D)	1,270,582	352,550	2,584,971	800,440
Expenses
Professional fees	3,694	9,630	142,699	153,808
Fund management fee, net (Note C)	134,746	246,200	561,302	727,934
General and administrative expenses	52,735	39,606	107,931	80,090
Operating expenses	191,175	295,436	811,932	961,832
NET INCOME (LOSS)	1,114,740	65,839	1,851,513	(111,882)
Net income (loss) allocated to limited assignees	1,103,592	65,180	1,832,999	(110,763)
Net income (loss) allocated to general partner	11,148	659	18,514	(1,119)
Net income (loss) per BAC	0.05	0.00	0.08	(0.01)
Series Fifteen [Member]
Income
Interest income	145	375	505	1,182
Other income	0	49	856	1,318
Revenues	145	424	1,361	2,500
Share of Income from Operating Partnerships(Note D)	20,025	325,050	40,762	325,050
Expenses
Professional fees	623	1,898	30,722	34,627
Fund management fee, net (Note C)	30,057	16,353	105,855	98,566
General and administrative expenses	10,540	7,826	20,105	15,161
Operating expenses	41,220	26,077	156,682	148,354
NET INCOME (LOSS)	(21,050)	299,397	(114,559)	179,196
Net income (loss) allocated to limited assignees	(20,840)	296,403	(113,413)	177,404
Net income (loss) allocated to general partner	(210)	2,994	(1,146)	1,792
Net income (loss) per BAC	(0.01)	0.08	(0.03)	0.05
Series Sixteen [Member]
Income
Interest income	134	444	614	1,501
Other income	400	5	1,637	2,024
Revenues	534	449	2,251	3,525
Share of Income from Operating Partnerships(Note D)	78,196	0	172,649	148,294
Expenses
Professional fees	0	2,036	34,507	37,971
Fund management fee, net (Note C)	50,148	76,074	183,584	179,316
General and administrative expenses	13,070	9,781	24,102	18,691
Operating expenses	63,218	87,891	242,193	235,978
NET INCOME (LOSS)	15,512	(87,442)	(67,293)	(84,159)
Net income (loss) allocated to limited assignees	15,357	(86,568)	(66,620)	(83,317)
Net income (loss) allocated to general partner	155	(874)	(673)	(842)
Net income (loss) per BAC	0.00	(0.02)	(0.01)	(0.02)
Series Seventeen [Member]
Income
Interest income	137	363	575	1,361
Other income	1,558	692	11,427	14,309
Revenues	1,695	1,055	12,002	15,670
Share of Income from Operating Partnerships(Note D)	315,625	27,500	336,562	227,646
Expenses
Professional fees	341	1,965	32,574	32,980
Fund management fee, net (Note C)	5,271	56,290	132,605	165,093
General and administrative expenses	11,219	8,409	22,639	17,291
Operating expenses	16,831	66,664	187,818	215,364
NET INCOME (LOSS)	300,489	(38,109)	160,746	27,952
Net income (loss) allocated to limited assignees	297,484	(37,728)	159,139	27,672
Net income (loss) allocated to general partner	3,005	(381)	1,607	280
Net income (loss) per BAC	0.06	(0.01)	0.03	0.01
Series Eighteen [Member]
Income
Interest income	70	68	172	534
Other income	28,433	1,215	39,433	10,485
Revenues	28,503	1,283	39,605	11,019
Share of Income from Operating Partnerships(Note D)	818,501	0	839,438	0
Expenses
Professional fees	1,805	1,848	24,359	25,549
Fund management fee, net (Note C)	38,438	65,733	163,357	185,196
General and administrative expenses	9,195	6,871	18,634	14,260
Operating expenses	49,438	74,452	206,350	225,005
NET INCOME (LOSS)	797,566	(73,169)	672,693	(213,986)
Net income (loss) allocated to limited assignees	789,590	(72,437)	665,966	(211,846)
Net income (loss) allocated to general partner	7,976	(732)	6,727	(2,140)
Net income (loss) per BAC	0.22	(0.02)	0.18	(0.06)
Series Nineteen [Member]
Income
Interest income	4,456	5,249	13,415	16,482
Other income	0	265	9,840	314
Revenues	4,456	5,514	23,255	16,796
Share of Income from Operating Partnerships(Note D)	38,235	0	1,195,560	99,450
Expenses
Professional fees	925	1,883	20,537	22,681
Fund management fee, net (Note C)	10,832	31,750	(24,099)	99,763
General and administrative expenses	8,711	6,719	22,451	14,687
Operating expenses	20,468	40,352	18,889	137,131
NET INCOME (LOSS)	22,223	(34,838)	1,199,926	(20,885)
Net income (loss) allocated to limited assignees	22,001	(34,490)	1,187,927	(20,676)
Net income (loss) allocated to general partner	$ 222	$ (348)	$ 11,999	$ (209)
Net income (loss) per BAC	0.01	(0.01)	0.29	(0.01)