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Note G - Treasury Stock (Details Textual) - USD ($)			6 Months Ended
	May 22, 2024	Apr. 24, 2024	Jun. 30, 2024	Dec. 31, 2023	Sep. 01, 2011
Treasury Stock, Common, Value			$ 13,995,000	$ 8,736,000
Treasury Stock, Common, Shares (in shares)			581,586	296,330
September 2011 Reauthorization [Member]
Share Repurchase Program, Authorized, Number of Shares (in shares)					500,000
Treasury Stock, Shares, Acquired (in shares)			1,050
Treasury Stock, Common, Value			$ 17,000
Share Repurchase Program, Remaining Authorized, Number of Shares (in shares)			474,016
Shares Repurchase Tender Offer [Member]
Treasury Stock, Shares, Acquired (in shares)	284,206
Treasury Stock, Common, Value	$ 5,100,000
Shares Acquired, Average Cost Per Share (in dollars per share)	$ 18
Shares Repurchase Tender Offer [Member] | Maximum [Member]
Share Repurchase Program, Authorized, Number of Shares (in shares)		550,000
Treasury Stock, Authorized to Repurchase, Purchase Price (in dollars per share)		$ 18
Shares Repurchase Tender Offer [Member] | Minimum [Member]
Treasury Stock, Authorized to Repurchase, Purchase Price (in dollars per share)		$ 15.5

X

- Definition

Purchase price for treasury stock authorized to repurchase.

+ References

No definition available.

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X

- Definition

Number of shares authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481520/505-30-50-4

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Number of shares remaining authorized to be purchased under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

+ References

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

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-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481549/505-30-45-1

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Number of previously issued common shares repurchased by the issuing entity and held in treasury.

+ References

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-Topic 505
-SubTopic 30
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Amount allocated to previously issued common shares repurchased by the issuing entity and held in treasury.

+ References

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-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(30))
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Number of shares that have been repurchased during the period and are being held in treasury.

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