Deposits - Summary of Deposit Accounts (Detail) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Deposits [Abstract]
Demand, noninterest-bearing	$ 165,228	$ 129,243
Demand, interest-bearing	269,222	256,258
Money market and savings	224,673	205,843
Time deposits, $250 and over	55,514	56,266
Time deposits, other	147,533	124,055
Total deposits	$ 862,170	$ 771,665
Demand, noninterest-bearing	19.16%	16.75%
Demand, interest-bearing	31.23%	33.21%
Money market and savings	26.67%	26.68%
Time deposits, $250,000 and over	6.44%	7.29%
Time deposits, other	17.11%	16.08%
Total deposits	100.00%	100.00%