This element represents the portion of the balance sheet assertion valued at fair value by the entity, which is held in a mortgage-backed security, whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may by used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

No definition available.

Debt Financing Narrative Tagging (Details)	1 Months Ended		3 Months Ended	12 Months Ended
Debt Financing Narrative Tagging (Details)	Dec. 31, 2015 USD ($)	Nov. 30, 2015 USD ($)	Sep. 30, 2016 USD ($) Trust Agreement	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Jul. 31, 2016 Integer	Jul. 31, 2015 USD ($) Integer
Debt Instrument [Line Items]
Deferred financing costs - net	$ 487,023			$ 456,890	$ 487,023
Available-for-sale Securities, Fair Value Disclosure Held in Trust	536,316,481			590,194,179	536,316,481
Debt financing	451,496,716			495,383,033	451,496,716
Proceeds from Sale of Available-for-sale Securities				9,295,000		$ 31,791,699
(Increase) decrease in other assets				(112,174)	(416,419)	$ (24,276)
ASU 2015-03 - Interest – Imputation of Interest [Member]
Debt Instrument [Line Items]
(Increase) decrease in other assets				5,400,000
Decreases in debt financings				4,900,000
Decrease in mortgages payable and other secured financing				470,000
Fairmont Oaks And Bent Tree Properties [Member]
Debt Instrument [Line Items]
Proceeds from Sale of Available-for-sale Securities	14,100,000	$ 14,100,000
Term A/B Trust [Member]
Debt Instrument [Line Items]
Cash Collateral for Borrowed Securities				1,400,000
Number of paid off and collapsed TOB Trusts \| Trust			7
Number of TOB Trusts \| Trust			9
Deferred financing costs - net			$ 1,400,000
Debt financing				171,778,950
Term A/B Trust [Member] \| Farnam Capital Advisors, LLC [Member]
Debt Instrument [Line Items]
Consulting fees				1,200,000
Mortgage Revenue Bonds [Member] \| Term A/B Trust [Member]
Debt Instrument [Line Items]
Number of new agreements \| Agreement			12
Interest Rate Swap [Member]
Debt Instrument [Line Items]
Cash Collateral for Borrowed Securities	$ 1,900,000				$ 1,900,000
TOB Facility [Member]
Debt Instrument [Line Items]
Number of Available for Sale Securities, Held in a Trust \| Integer							8
TEBS III Facility [Member]
Debt Instrument [Line Items]
Number of Available for Sale Securities, Held in a Trust \| Integer								9
Available-for-sale Securities, Fair Value Disclosure Held in Trust								$ 105,400,000
Debt financing				84,300,000
Debt Financing, Net				$ 82,200,000