Employee Benefit Plans - Summary of Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Detail) - Supplemental Employee Retirement Plan [Member] - USD ($)	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Net periodic benefit cost
Interest cost	$ 250,240	$ 222,849
Recognized net actuarial (gain) loss	98,082	171,677
Net periodic benefit cost	$ 348,322	$ 394,526

Employee Benefit Plans - Summary of Components of Net Periodic Benefit Cost and Other Amounts Recognized in Other Comprehensive Income (Detail) - Supplemental Employee Retirement Plan [Member] - USD ($)

12 Months Ended

Dec. 31, 2022

Dec. 31, 2021

Net periodic benefit cost

Interest cost

$ 250,240

$ 222,849

Recognized net actuarial (gain) loss

98,082

171,677

Net periodic benefit cost

$ 348,322

$ 394,526