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Employee Benefit Plans - Summary of Amounts Recognized in Accumulated Other Comprehensive Income (Detail) - Supplemental Employee Retirement Plan [Member] - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Amounts Recognized in Accumulated Other Comprehensive Income
Net actuarial loss	$ 1,939,269	$ 593,326
Total (before tax effects)	$ 1,939,269	$ 593,326

X

- Definition

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

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- References

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- Definition

Amount, before tax, after reclassification adjustment, of increase (decrease) in accumulated other comprehensive income from gain (loss) of defined benefit plan.

+ References

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-Publisher FASB
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