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Note 7 - Shareholders' Equity (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Treasury Stock, Common, Shares (in shares)	12,253,502	12,253,502
Treasury Stock, Value	$ 18,929,915	$ 18,929,915
Common Stock [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)	247,961	333,943
Share-based Compensation Arrangements by Share-based Payment Award, Other than Options, Grants in Period, Weighted Average Exercise Price (in dollars per share)	$ 1.38	$ 1.63

X

- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of other than options.

+ References

No definition available.

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Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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

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The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury.

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