Subordinated Debt (Narrative) (Details)	12 Months Ended
Dec. 31, 2020 USD ($)
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Subordinate notes	$ 19,555,000
Redemption period	5 years
Maximum borrowing capacity with the FHLB	$ 387,700,000
Amount available to borrow at year-end	387,700,000
Unsecured line of credit	21,000,000.0
Available through federal reserve discount window	$ 26,000,000
Through September 1, 2025 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Interest rate	5.00%
Subordinated Debt [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt instrument, face amount	$ 20,000,000
Debt issuance costs	$ 445,300,000
Redemption period	5 years
Subordinated Debt [Member] \| Maturing September 1, 2030 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt instrument, face amount	$ 15,000,000.0
Amortization period	5 years
Subordinated Debt [Member] \| Maturing September 1, 2030 [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Basis spread on variable rate	4.93%
Subordinated Debt [Member] \| Maturing September 1, 2035 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt instrument, face amount	$ 5,000,000.0
Amortization period	10 years
Subordinated Debt [Member] \| Maturing September 1, 2035 [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Basis spread on variable rate	4.92%
Subordinated Debt [Member] \| Through September 1, 2025 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt instrument, face amount	$ 15,000,000.0
Subordinated Debt [Member] \| Through September 1, 2030 [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Debt instrument, face amount	$ 5,000,000.0
Interest rate	5.25%

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