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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Contractual interest rate for funds borrowed, under the debt agreement.

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States the interest rate applicable to Federal Home Loan Bank advances outstanding as of the Balance Sheet date.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The effective interest rate at the end of the reporting period.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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Borrowings - Outstanding Borrowings (Details) - USD ($)	12 Months Ended
Borrowings - Outstanding Borrowings (Details) - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Apr. 20, 2020	May 01, 2019
Amount
Paycheck Protection Program Liquidity Facility	$ 106,789,000	$ 0
Revolving Credit	0	0
Subordinated debentures	24,229,000	24,229,000
Total borrowings	167,081,000	85,792,000
Revolving Credit Facility
Amount
Revolving Credit	$ 5,313,000	$ 5,313,000
Interest Rate
Revolving Credit	3.65%	5.15%
Term Note
Amount
Term Note	$ 8,250,000	$ 9,250,000
Interest Rate
Long-term debt	4.70%	4.70%		4.70%
Subordinated Debt \| Minimum
Interest Rate
Subordinated debentures	1.40%	3.34%
Subordinated Debt \| Maximum
Interest Rate
Subordinated debentures	2.68%	4.58%
FHLB Advances Due March 23, 2023
Amount
FHLB Advances	$ 3,000,000
Interest Rate
FHLB Advances	3.51%
FHLB Advances Due March 21, 2028
Amount
FHLB Advances	$ 5,000,000	$ 5,000,000
Interest Rate
FHLB Advances	2.67%	2.67%
FHLB Advances Due August 15, 2025
Amount
FHLB Advances	$ 4,500,000	$ 4,500,000
Interest Rate
FHLB Advances	2.62%	2.62%
FHLB Advances Due August 24, 2026
Amount
FHLB Advances		$ 3,000,000
Interest Rate
FHLB Advances		1.27%
FHLB Advances Due July 30, 2029
Amount
FHLB Advances	$ 10,000,000	$ 10,000,000
Interest Rate
FHLB Advances	1.01%	1.01%
Paycheck Protection Program, CARES Act
Amount
Paycheck Protection Program Liquidity Facility	$ 106,789,000
Interest Rate
Long-term debt	0.35%		0.35%
FHLB Advances Due March 23, 2020
Amount
FHLB Advances		$ 2,500,000
Interest Rate
FHLB Advances		2.17%
FHLB Advances Due June 1, 2020
Amount
FHLB Advances		$ 1,000,000
Interest Rate
FHLB Advances		1.65%
FHLB Advances Due August 15, 2022
Amount
FHLB Advances		$ 18,000,000
Interest Rate
FHLB Advances		2.69%
FHLB Advances Due February 3, 2023
Amount
FHLB Advances		$ 3,000,000
Interest Rate
FHLB Advances		3.51%