Derivative Financial Instruments - Narrative (Details) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Derivative [Line Items]
Unrealized gain (loss) on derivatives	$ (157,268)	$ (604,545)	$ 61,698
Interest Rate Cap [Member]
Derivative [Line Items]
Unrealized gain (loss) on derivatives	(157,268)	(604,545)	61,698
Payments for (Proceeds from) Derivative Instrument, Investing Activities	223,300	37,350
Interest Rate Cap [Member] \| Deferred Financing Costs and Other Assets, Net [Member]
Derivative [Line Items]
Fair value of interest rate cap agreements	117,678	51,646
Interest Rate Cap [Member] \| Interest Expense [Member]
Derivative [Line Items]
Unrealized gain (loss) on derivatives	$ (157,268)	$ (604,545)	$ 61,698

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Fair value as of the balance sheet date of interest rate derivative assets, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized as assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13433-108611

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- Definition

The net cash outflow or inflow from derivative instruments during the period, which are classified as investing activities, excluding those designated as hedging instruments.

+ References

No definition available.

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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