Segment Information - Reconciliation of Segment Operating Income (Details) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Reconciliation Of Segment Operating Income Details [Abstract]
Operating income	$ 11,412,664	$ 8,429,348
Interest expense, net	919,709	1,788,512
Other expense	666,000	97,000
Consolidated income before taxes	$ 9,826,728	$ 6,543,164

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details