Fair Value Measurement, by Balance Sheet Grouping (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 51,134	$ 37,289	$ 38,508
Interest bearing deposits in banks	6,565	9,300
Investment securities	88,083	73,961
Loans held for sale	7,442	2,899
Loans, Net	670,244	642,461
Deposits
Noninterest bearing	136,434	132,971
Interest bearing	458,940	444,722
Time	148,653	129,077
Residential Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	192,125	187,320
Construction Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	69,617	55,322
Commercial Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	289,883	276,500
Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	47,699	47,228
Consumer [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	3,562	3,241
Municipal [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	67,358	72,850
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	51,134	37,289
Investment securities	690	556
Deposits
Noninterest bearing	136,434	132,971
Interest bearing	458,940	444,722
Borrowed funds
Short-term, Fair Value	40,000	370
Significant Other Observable Inputs (Level 2) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest bearing deposits in banks	6,671	9,177
Investment securities	87,393	73,405
Loans held for sale	7,587	2,954
Accrued interest receivable	435	423
Deposits
Time	148,542	127,554
Borrowed funds
Long-term, Fair Value	7,416	27,374
Accrued interest payable	673	203
Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accrued interest receivable	2,267	2,389
Significant Unobservable Inputs (Level 3) [Member] \| Residential Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	192,955	183,836
Significant Unobservable Inputs (Level 3) [Member] \| Construction Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	68,381	54,694
Significant Unobservable Inputs (Level 3) [Member] \| Commercial Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	288,931	272,187
Significant Unobservable Inputs (Level 3) [Member] \| Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	45,872	45,713
Significant Unobservable Inputs (Level 3) [Member] \| Consumer [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	3,483	3,193
Significant Unobservable Inputs (Level 3) [Member] \| Municipal [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	67,103	72,689
Carrying Amount [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	51,134	37,289
Interest bearing deposits in banks	6,565	9,300
Investment securities	88,083	73,961
Loans held for sale	7,442	2,899
Accrued interest receivable	2,702	2,812
Nonmarketable equity securities	2,607	2,376
Deposits
Noninterest bearing	136,434	132,971
Interest bearing	458,940	444,722
Time	148,653	129,077
Borrowed funds
Short-term	40,000	370
Long-term	7,164	27,451
Accrued interest payable	673	203
Carrying Amount [Member] \| Residential Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	191,032	186,225
Carrying Amount [Member] \| Construction Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	68,951	54,786
Carrying Amount [Member] \| Commercial Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	286,871	273,609
Carrying Amount [Member] \| Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	47,379	46,943
Carrying Amount [Member] \| Consumer [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	3,545	3,223
Carrying Amount [Member] \| Municipal [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Net	67,387	72,874
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	51,134	37,289
Interest bearing deposits in banks	6,671	9,177
Investment securities	88,083	73,961
Loans held for sale	7,587	2,954
Accrued interest receivable	2,702	2,812
Deposits
Noninterest bearing	136,434	132,971
Interest bearing	458,940	444,722
Time	148,542	127,554
Borrowed funds
Short-term, Fair Value	40,000	370
Long-term, Fair Value	7,416	27,374
Accrued interest payable	673	203
Estimated Fair Value [Member] \| Residential Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	192,955	183,836
Estimated Fair Value [Member] \| Construction Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	68,381	54,694
Estimated Fair Value [Member] \| Commercial Real Estate [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	288,931	272,187
Estimated Fair Value [Member] \| Commercial [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	45,872	45,713
Estimated Fair Value [Member] \| Consumer [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	3,483	3,193
Estimated Fair Value [Member] \| Municipal [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans, Fair Value	$ 67,103	$ 72,689

Interest-bearing Non-time Deposits

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Investment in interest bearing deposits in banks (such as certificates of deposit) with varying maturity dates.

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Securities that do not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). Example is Federal Home Loan Bank (FHLB) stock that represents an equity interest in a FHLB.

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The sum of cash and cash equivalents plus Federal Funds Sold. Cash and cash equivalents consist of short term, highly liquid investments that are readily convertible to known amounts of cash and are so near their maturity that they present negligible risk of changes in value due to changes in interest rates -- usually with an original maturity less than 90 days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Amount, after allowance for bad debt, of loan receivables held-for-sale that are not part of a disposal group. Excludes loans and leases covered under loss sharing agreements and loans classified as debt securities.

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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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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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Amount of investment in marketable security.

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The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount of short-term debt existing as of the balance sheet date.

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Amount of time deposit liabilities, including certificates of deposit.

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