Deposits (Scheduled Maturities of Time Deposits Not Covered By Deposit Insurance) (Detail) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deposits [Abstract]
Due within 3 months or less	$ 92,403
Due after 3 months and within 6 months	34,038
Due after 6 months and within 12 months	58,357
Due after 12 months	53,810
Time deposits liability, above US Insurance Limit Total	$ 238,608	$ 237,298