Note P - Fair Value Measurements and Disclosures - Carrying Value and Estimated Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Cash and due from banks	$ 32,836	$ 49,991
Available for sale securities	350,168	376,803
Held to maturity securities	195,217	110,208
Held to maturity securities, fair value	180,050	111,340
Other investments	350	2,404
Federal Home Loan Bank stock	2,175	2,153
Loans, net	223,494	238,305
Cash surrender value of life insurance	20,768	20,150
Intangible asset	600
Non-interest bearing	198,097	193,473
Interest bearing	497,950	512,034
Borrowings from Federal Home Loan Bank		1,072
Fair Value, Inputs, Level 1 [Member]
Cash and due from banks	32,836	49,991
Available for sale securities
Held to maturity securities, fair value
Other investments	350	2,404
Federal Home Loan Bank stock
Loans, net
Cash surrender value of life insurance
Intangible asset
Non-interest bearing	198,097	193,473
Interest bearing
Borrowings from Federal Home Loan Bank
Fair Value, Inputs, Level 2 [Member]
Cash and due from banks
Available for sale securities	350,168	376,803
Held to maturity securities, fair value	180,050	111,340
Other investments
Federal Home Loan Bank stock	2,175	2,153
Loans, net
Cash surrender value of life insurance	20,768	20,150
Intangible asset
Non-interest bearing
Interest bearing
Borrowings from Federal Home Loan Bank		1,072
Fair Value, Inputs, Level 3 [Member]
Cash and due from banks
Available for sale securities
Held to maturity securities, fair value
Other investments
Federal Home Loan Bank stock
Loans, net	223,494	238,305
Cash surrender value of life insurance
Intangible asset	600
Non-interest bearing
Interest bearing	497,950	512,034
Borrowings from Federal Home Loan Bank
Reported Value Measurement [Member]
Cash and due from banks	32,836	49,991
Available for sale securities	350,168	376,803
Held to maturity securities	195,217	110,208
Other investments	350	2,404
Federal Home Loan Bank stock	2,175	2,153
Loans, net	234,540	235,851
Cash surrender value of life insurance	20,768	20,150
Intangible asset	600
Non-interest bearing	198,097	193,473
Interest bearing	$ 587,683	511,365
Borrowings from Federal Home Loan Bank		$ 889

Fair value portion of interest bearing deposits.

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- Definition

Fair value portion of non-interest bearing deposits.

+ References

No definition available.

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- Definition

Fair value portion of investments other than securities.

+ References

No definition available.

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- Definition

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(6))
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 45
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

+ References

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-Topic 942
-SubTopic 210
-Section S99
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- Definition

Fair value portion of the amount that could be realized under a life insurance contract or contracts owned by the entity, commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

+ References

No definition available.

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- Definition

Fair value portion of borrowing from Federal Home Loan Bank (FHLBank).

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13(3)(a))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

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- Definition

Fair value portion of assets, excluding financial assets, that lack physical substance, having a limited useful life.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258

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- Definition

Amount, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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- Definition

Fair value portion of investments in Federal Home Loan Bank (FHLBank) stock.

+ References

No definition available.

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- Definition

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.

+ References

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