Transactions with Related Parties - Additional Information (Details)	1 Months Ended	3 Months Ended
	Feb. 28, 2017 USD ($)	Mar. 31, 2018 USD ($) Property	Mar. 31, 2017 USD ($)
Rate for administration fees		0.45%
Fees and commissions, other		$ 1,068,000	$ 938,000
MF Properties Managed [Member]
Number of Real Estate Properties | Property		8
Management fees revenue		$ 50,000	113,000
General Partner [Member]
Administrative fees paid by partnership		922,000	865,000
General Partner [Member] | Mortgage Revenue Bonds [Member]
Administrative fees paid by partnership		25,000	15,000
Farnam Capital Advisors, LLC [Member]
Placement advisory fees		0	269,000
Farnam Capital Advisors, LLC [Member] | Term A/B Trust [Member]
Consulting fees	$ 921,000	$ 0	$ 921,000