Consolidated Statements of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Condensed Consolidated Statements Of Comprehensive Loss Income [Abstract]
Net income	$ 13,655,679	$ 8,098,766
Other comprehensive gain
Foreign currency translation	(554,681)	647,632
Change in net prior service credit and actuarial gains, net of income tax expense		514,271
Total other comprehensive (loss) income	(554,681)	1,161,903
Comprehensive income	$ 13,100,998	$ 9,260,669