Financial Instruments with Off-Balance Sheet Risk (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	$ 191,880	$ 202,229
Undisbursed Loan Commitments [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	189,097	198,534
Standby Letters of Credit [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	1,731	2,455
Financial Standby Letter of Credit [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	0
Draw on letters of credit	0
Performance Standby Letters of Credit [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	1,731
Draw on letters of credit	0
Commitments to Sell Loans [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	1,052	1,240
Reserve for Off-balance Sheet Activity [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Reserve for unfunded commitments	950	$ 840
Derivative [Member]
Financial Instruments with Off-Balance Sheet Risks [Abstract]
Off-balance sheet credit risks	$ 0