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Deposits (Details) - USD ($)
Mar. 31, 2022
Dec. 31, 2021
Major classes of deposits [Abstract]    
Demand $ 135,249,000 $ 115,947,000
Savings 7,089,000 6,685,000
Money markets 53,434,000 31,076,000
Time certificates of deposit 81,688,000 98,184,000
Total deposits 277,460,000 251,892,000
Maturities of time deposits [Abstract]    
Year Ended December 31, 2022 24,444,000  
Year Ended December 31, 2023 21,461,000  
Year Ended December 31, 2024 16,156,000  
Year Ended December 31, 2025 10,073,000  
Year Ended December 31, 2026 8,676,000  
Thereafter 878,000  
Total 81,688,000 98,184,000
FDIC insurance limit on deposit accounts 250,000 250,000
Time deposits equal or greater than FDIC insurance limits $ 3,500,000 $ 3,700,000