Employee Benefit Plans - Summary of the Components of the Net Periodic Post-Retirement Benefit Cost (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Employee Benefits And Share Based Compensation [Abstract]
Interest cost	$ 300,973	$ 366,543
Expected return on assets	710,539	643,058
Amortization of unrecognized loss	(219,288)	(142,053)
Periodic post-retirement cost (benefit)	$ (190,278)	$ (134,462)