CONDENSED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended
	Jun. 30, 2015		Jun. 30, 2014
Cash flows from operating activities
Net income (loss)	$ 5,814,790		$ 193,893
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Share of income from operating partnerships	(5,850,728)		(382,700)
Changes in assets and liabilities
Increase in accounts payable and accrued expenses	17,800		11,000
Decrease in other assets	2,200		0
(Decrease) Increase in accounts payable affiliates	38,584		180,539
Net cash (used in) provided by operating activities	22,646		2,732
Cash flows from investing activities
Proceeds from the disposition of Operating Partnerships	6,192,561	[1]	382,700
Net cash provided by investing activities	6,192,561		382,700
Net cash used in financing activities
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	6,215,207		385,432
Cash and cash equivalents, beginning	2,523,234		2,294,311
Cash and cash equivalents, ending	8,738,441		2,679,743
Series Fifteen [Member]
Cash flows from operating activities
Net income (loss)	374,504		375,601
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Share of income from operating partnerships	(325,769)		(382,700)
Changes in assets and liabilities
Increase in accounts payable and accrued expenses	3,000		11,000
Decrease in other assets	0		0
(Decrease) Increase in accounts payable affiliates	19,131		30,864
Net cash (used in) provided by operating activities	70,866		34,765
Cash flows from investing activities
Proceeds from the disposition of Operating Partnerships	325,769	[1]	382,700
Net cash provided by investing activities	325,769		382,700
Net cash used in financing activities
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	396,635		417,465
Cash and cash equivalents, beginning	414,859		161,422
Cash and cash equivalents, ending	811,494		578,887
Series Sixteen [Member]
Cash flows from operating activities
Net income (loss)	(48,500)		(58,143)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Share of income from operating partnerships	0		0
Changes in assets and liabilities
Increase in accounts payable and accrued expenses	0		0
Decrease in other assets	0		0
(Decrease) Increase in accounts payable affiliates	45,774		56,813
Net cash (used in) provided by operating activities	(2,726)		(1,330)
Cash flows from investing activities
Proceeds from the disposition of Operating Partnerships	0	[1]	0
Net cash provided by investing activities	0		0
Net cash used in financing activities
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(2,726)		(1,330)
Cash and cash equivalents, beginning	221,108		176,922
Cash and cash equivalents, ending	218,382		175,592
Series Seventeen [Member]
Cash flows from operating activities
Net income (loss)	5,534,374		(51,918)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Share of income from operating partnerships	(5,524,959)		0
Changes in assets and liabilities
Increase in accounts payable and accrued expenses	14,800		0
Decrease in other assets	2,200		0
(Decrease) Increase in accounts payable affiliates	(50,225)		46,986
Net cash (used in) provided by operating activities	(23,810)		(4,932)
Cash flows from investing activities
Proceeds from the disposition of Operating Partnerships	5,524,959	[1]	0
Net cash provided by investing activities	5,524,959		0
Net cash used in financing activities
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	5,501,149		(4,932)
Cash and cash equivalents, beginning	197,779		799,176
Cash and cash equivalents, ending	5,698,928		794,244
Series Eighteen [Member]
Cash flows from operating activities
Net income (loss)	(31,312)		(49,627)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Share of income from operating partnerships	0		0
Changes in assets and liabilities
Increase in accounts payable and accrued expenses	0		0
Decrease in other assets	0		0
(Decrease) Increase in accounts payable affiliates	23,904		45,876
Net cash (used in) provided by operating activities	(7,408)		(3,751)
Cash flows from investing activities
Proceeds from the disposition of Operating Partnerships	341,833	[1]	0
Net cash provided by investing activities	341,833		0
Net cash used in financing activities
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	334,425		(3,751)
Cash and cash equivalents, beginning	306,518		355,319
Cash and cash equivalents, ending	640,943		351,568
Series Nineteen [Member]
Cash flows from operating activities
Net income (loss)	(14,276)		(22,020)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Share of income from operating partnerships	0		0
Changes in assets and liabilities
Increase in accounts payable and accrued expenses	0		0
Decrease in other assets	0		0
(Decrease) Increase in accounts payable affiliates	0		0
Net cash (used in) provided by operating activities	(14,276)		(22,020)
Cash flows from investing activities
Proceeds from the disposition of Operating Partnerships	0	[1]	0
Net cash provided by investing activities	0		0
Net cash used in financing activities
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(14,276)		(22,020)
Cash and cash equivalents, beginning	1,382,970		801,472
Cash and cash equivalents, ending	$ 1,368,694		$ 779,452

[1] Fund proceeds from disposition include $341,833 which was receivable as of March 31, 2015 for Series 18.