Other Assets - Other Assets (Details) - USD ($)	Dec. 31, 2018	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid expenses	$ 1,866,024	$ 2,132,212
Interest rate cap agreements	117,678	51,646
Deposits	714,736	1,074,726
Other assets	$ 2,698,438	$ 3,258,584