Deposits - Maturities and average interest rates of COD (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Schedule of maturities of certificates of deposits
2020	$ 25,983,000
2021	10,611,000
2022	8,892,000
2023	2,611,000
2024	5,058,000
Thereafter	2,093,000
Certificates of Deposit	$ 55,248,000	$ 52,996,000
Schedule of average interest rate of Certificates of deposits
2020	2.104%
2021	2.086%
2022	2.016%
2023	2.588%
2024	2.605%
Thereafter	2.686%
Weighted average interest rate of certificates of deposit	2.177%
Aggregate amount of time deposits with a denomination greater than $250,000	$ 2,088,000	$ 2,076,000