Income Taxes - Current and Deferred Tax Expense (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Current:
Federal	$ 155,370	$ 297,863
State	183,844	96,896
Total current income tax expense	339,214	394,759
Deferred:
Federal	663,202	(131,081)
State	142,157	61,603
Total deferred tax expense (benefit)	805,359	(69,478)
Income tax expense	$ 1,144,573	$ 325,281