Note 12 - Share Based Compensation (Details Textual) - USD ($)		12 Months Ended
Mar. 24, 2022	Dec. 31, 2024	Dec. 31, 2023
The 2008 Plan [Member]
Share-Based Payment Arrangement, Expense		$ 0	$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value		98,000
Share-Based Payment Arrangement, Expense, Tax Benefit		0	0
The 2018 Plan [Member]
Share-Based Payment Arrangement, Expense		0	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value		90,000	0
Share-Based Payment Arrangement, Expense, Tax Benefit		0	0
The 2020 Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value		17,000
Share-Based Payment Arrangement, Expense, Tax Benefit		5,800	12,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		$ 2,200
Oustanding Stock Options and Unvested RSU's [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		0
Oustanding Stock Options and Unvested RSU's [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		1 year
Oustanding Stock Options and Unvested RSU's [Member] \| Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		4 years
Share-Based Payment Arrangement, Option [Member] \| The 2020 Plan [Member]
Share-Based Payment Arrangement, Expense		$ 19,500	47,000
Share-Based Payment Arrangement, Option [Member] \| CEO Inducement Plan [Member]
Share-Based Payment Arrangement, Expense			0
Share-Based Payment Arrangement, Expense, Tax Benefit		0	0
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		0
Restricted Stock [Member] \| The 2018 Plan [Member]
Share-Based Payment Arrangement, Expense		117,500	235,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount		36,885
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Vested		$ 315,000	$ 104,000
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)			3 months 18 days
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		57,143	304,513
Phantom Share Units (PSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)	3 years
Share-Based Payment Arrangement, Expense		$ 0	$ 600,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	111,111

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Publisher FASB
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of tax benefit for recognition of expense of award under share-based payment arrangement.

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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.

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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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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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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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Intrinsic value of vested award under share-based payment arrangement. Excludes share and unit options.

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