Consolidated Statements of Cash Flows (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 2,350,200	$ 1,542,500
Restricted cash	1,076,900	0
Cash, cash equivalents and restricted cash shown in the statement of cash flows	3,427,100	1,542,500
Interest paid	8,123,100	8,173,900
Income taxes paid	$ 617,600	$ 1,063,200