Fair Value Measurement - Schedule of Assets Measured at Fair Value on Nonrecurring Basis (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Fair Value Inputs Asset Quantitative Information [Line Items]
Other real estate owned and repossessed assets	$ 31
Fair Value, Measurements, Nonrecurring [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	23,725	$ 13,558
Other real estate owned and repossessed assets	31
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans	23,725	$ 13,558
Other real estate owned and repossessed assets	$ 31
Collateral dependent loans, Appraisal adjustments	30.00%	(0.00%)
Collateral dependent loans, Liquidation expenses		(8.00%)
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Minimum [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Liquidation expenses	(5.60%)
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Maximum [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Liquidation expenses	8.00%
Fair Value, Measurements, Nonrecurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Weighted Average [Member]
Fair Value Inputs Asset Quantitative Information [Line Items]
Collateral dependent loans, Appraisal adjustments	30.00%	(0.00%)
Collateral dependent loans, Liquidation expenses	6.70%	(8.00%)