Schedule III - Real Estate and Accumulated Depreciation - Schedule of Real Estate Investment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
SEC Schedule, 12-28, Real Estate Companies, Investment in Real Estate and Accumulated Depreciation Disclosure [Abstract]
Balance - Beginning of Year	$ 758,487,025	$ 636,576,955	$ 574,283,574
Acquisitions	58,730,264	59,308,067	7,276,356
Improvements	61,102,376	65,458,396	56,417,927
Total Additions	119,832,640	124,766,463	63,694,283
Deletions	(3,718,430)	(2,856,393)	(1,400,902)
Balance - End of Year	$ 874,601,235	$ 758,487,025	$ 636,576,955