Debt Financing - Additional Information (Details)	1 Months Ended			3 Months Ended	12 Months Ended
	Aug. 31, 2017 USD ($)	Feb. 28, 2017 USD ($) Agreement	Jan. 31, 2016 Trust	Sep. 30, 2016 USD ($) Agreement Trust	Dec. 31, 2017 USD ($) Option Paydown	Dec. 31, 2016 USD ($)	Mar. 31, 2017 USD ($)
Debt Instrument [Line Items]
Deferred financing costs - net					$ 4,266,825
Extension option for each TEBS | Option					1
Number of unscheduled paydowns for each TEBS | Paydown					3
TEBS I Facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date					2017-09
Debt instrument additional maturity period					3 years
Debt instrument extended maturity date					2020-09
TEBS II Facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date					2019-07
Debt instrument additional maturity period					5 years
Debt instrument extended maturity date					2024-07
TEBS III Facility [Member]
Debt Instrument [Line Items]
Debt instrument, maturity date					2020-07
Debt instrument additional maturity period					5 years
Debt instrument extended maturity date					2025-07
Farnam Capital Advisors, LLC [Member]
Debt Instrument [Line Items]
Consulting fees					$ 921,000	$ 1,200,000
Term A/B Trust [Member]
Debt Instrument [Line Items]
Deferred financing costs - net		$ 1,200,000		$ 1,400,000			$ 47,000
Number of paid off and collapsed TOB Trusts | Trust				7
Term A/B Trust [Member] | Harmony Court Bakers field Series B [Member]
Debt Instrument [Line Items]
Payments for debt financing liabilities	$ 1,700,000
Term A/B Trust [Member] | Farnam Capital Advisors, LLC [Member]
Debt Instrument [Line Items]
Consulting fees		$ 921,000		$ 1,200,000
TOB Financing Facility [Mmeber] | DB [Member]
Debt Instrument [Line Items]
Debt instruments, addtional renewal period, in years					1 year
Mortgage Revenue Bonds [Member]
Debt Instrument [Line Items]
Number of paid off and collapsed TOB Trusts | Trust			3
Mortgage Revenue Bonds [Member] | Term A/B Trust [Member]
Debt Instrument [Line Items]
Number of new agreements | Agreement		19		12