Real Estate and Accumulated Depreciation (Details 3) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Schedule of reconciliation of fixed assets
Balance - Beginning of Year	$ 365,824,412	$ 253,490,055	$ 191,252,542
Additions:
Acquisitions	42,422,064	88,211,013	47,376,000
Improvements	40,798,234	26,041,264	16,121,717
Total Additions	83,220,298	114,252,277	63,497,717
Deletions	(880,251)	(1,917,920)	(1,260,204)
Balance - End of Year	$ 448,164,459	$ 365,824,412	$ 253,490,055