Interest-Bearing Deposits - Summary of Interest - Bearing Deposits (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Interest Bearing Deposits [Line Items]
Total interest-bearing deposits	$ 668,401	$ 619,511
Interest-bearing Deposits
Interest Bearing Deposits [Line Items]
Demand	242,387	243,467
Savings	304,639	252,712
In excess of $250,000	26,213	23,378
Other	95,162	99,954
Total interest-bearing deposits	$ 668,401	$ 619,511