Sale of Properties (Details)						3 Months Ended				12 Months Ended
	Sep. 21, 2016 USD ($)	Sep. 21, 2016 USD ($)	Jul. 27, 2015 USD ($)	Jun. 15, 2015 USD ($)	Jun. 01, 2015 USD ($)	Mar. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2017 USD ($) item	Mar. 31, 2016 USD ($) item
Schedule Of Sale Of Properties [Line Items]
Number of limited partnership sold | item						2				9	2
Number of partnerships with net assets sold to date | item										4
Gain on sale of property										$ 5,223,004	$ 10,604,339
Decrease in due from local general partners and affiliates											(427)
Contributions- write-off of related party debt											136,181
Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Gain on sale of property										5,223,004	$ 10,604,339
Bakery Village Urban Renewal Associates | Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Consideration received for discontinued operation	$ 2,200,000	$ 2,200,000
Repayment of administrative fees	$ 79,000
Gain on sale of property		$ 5,247,000								5,223,000
Bakery Village Urban Renewal Associates | Discontinued Operations, Disposed of by Sale | Adjustment [Member]
Schedule Of Sale Of Properties [Line Items]
Gain on sale of property										24,000
First African
Schedule Of Sale Of Properties [Line Items]
Adjustment to increase (decrease) gain on discontinued operation						$ (88,000)
First African | Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Consideration received for discontinued operation			$ 1
Gain on sale of property			$ 1,603,000							1,515,000
Contributions- write-off of related party debt										77,807
KSD Village | Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Sales price of property and related assets					$ 1
Gain on sale of property					$ 293,000					232,000
Adjustment to increase (decrease) gain on discontinued operation						(61,000)
Contributions- write-off of related party debt										58,374
Kaneohe | Discontinued Operations, Disposed of by Sale
Schedule Of Sale Of Properties [Line Items]
Consideration received for discontinued operation				$ 2,893,000
Sales price of property and related assets				10,100,000
Gain on sale of property									$ 4,587,000	$ 8,857,000
Adjustment to increase (decrease) gain on discontinued operation						$ 196,000	$ 1,000	$ 4,073,000
Repayment of mortgages, other liabilities and closing costs				$ 7,207,000
Distributions received after sale								$ 4,069,000