Schedule III - Real Estate and Accumulated Depreciation - Schedule of Real Estate Invesment (Details) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Schedule Iii - Real Estate And Accumulated Depreciation - Schedule Of Real Estate Invesment Details
Balance - Beginning of Year	$ 574,283,574	$ 444,908,976	$ 362,707,205
Acquisitions	7,276,356	82,276,902	42,422,064
Improvements	56,417,927	48,263,233	40,659,958
Total Additions	63,694,283	130,540,135	83,082,022
Deletions	(1,400,902)	(1,165,537)	(880,251)
Balance - End of Year	$ 636,576,955	$ 574,283,574	$ 444,908,976