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Note O - Stock Options (Details Textual) - USD ($)			12 Months Ended
	Dec. 14, 2023	Jan. 27, 2016	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)			1 year 1 month 20 days	11 months 15 days	2 years 25 days
Share Price (in dollars per share)			$ 1.71	$ 3	$ 10.62
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)			3,007
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share)			$ 0	$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)			0	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value			$ 0	$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)			(0)	(0)
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested in Period, Fair Value			$ 0	$ 18,310
Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount				$ 0
In The Money Options [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number (in shares)			0	0	0
The 2023 Stock Incentive Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)	333,334
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			177,433
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures (in shares)			7,817
The 2023 Stock Incentive Plan [Member] | Stock Issued in Lieu of Board Fees [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			7,761
The 2023 Stock Incentive Plan [Member] | Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent	100.00%
The 2023 Stock Incentive Plan [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent	110.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term (Year)	10 years
The 2015 Equity Incentive Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		10,417
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)		10 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares)			0	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period (in shares)			(0)	(0)
The 2015 Equity Incentive Plan [Member] | Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent						100.00%
The 2015 Equity Incentive Plan [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Purchase Price of Common Stock, Percent						110.00%
The Amended 2015 Equity Incentive Plan [Member]
Common Stock, Capital Shares Reserved for Future Issuance (in shares)		10,417				43,834

X

- Definition

Aggregate number of common shares reserved for future issuance.

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Amount of cost to be recognized for option under share-based payment arrangement.

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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).

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Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Price of a single share of a number of saleable stocks of a company.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock.

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Purchase price of common stock expressed as a percentage of its fair value.

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Number of share options (or share units) exercised during the current period.

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