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Deposits - Composition of Deposits (Detail) - USD ($)
$ in Thousands
Mar. 31, 2021
Dec. 31, 2020
Deposits [Abstract]    
Non-interest bearing checking $ 94,784 $ 98,970
Interest bearing checking 33,693 30,630
Money market 102,663 103,724
Statement savings 64,610 58,895
Certificates of deposit 81,908 87,629
Total $ 377,658 $ 379,848