Summary of Significant Accounting Policies (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 82,163,055	$ 29,609,484	$ 20,738,351
Restricted cash			15,120,570
Cash held in escrow by lender	2,062,941	2,398,053	2,223,456
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$ 100,481,419	$ 50,549,700	$ 38,082,377	$ 28,538,853