Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

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- Definition

Number, before forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

+ References

No definition available.

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Note V - Subsequent Events (Details Textual) - shares				12 Months Ended
Note V - Subsequent Events (Details Textual) - shares	May 11, 2023	May 05, 2023	Mar. 16, 2023	Dec. 31, 2022
Restricted Stock [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period				3 years
Restricted Stock [Member] \| Share-Based Payment Arrangement, Employee [Member] \| Forecast [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period		13,959
Director [Member] \| Common Stock [Member] \| Stock Issued in Lieu of Board Fees [Member] \| Forecast [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture	17,392
Director [Member] \| Common Stock [Member] \| Stock Issued in Lieu of Board Committee Fees [Member] \| Forecast [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture	2,900	2,858
Subsequent Event [Member] \| Restricted Stock [Member] \| Share-Based Payment Arrangement, Employee [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period			40,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period			3 years
Subsequent Event [Member] \| Director [Member] \| Common Stock [Member] \| Stock Issued in Lieu of Board Fees [Member]
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture			15,388