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Note 12 - Long-term Incentive Plan - Stock Option Activity (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Outstanding balance, shares (in shares) | 54,000 | 54,000 | [1]
Outstanding balance, weighted average exercise price (in dollars per share) | $ 1.83 | $ 1.83 | [1]
Outstanding balance, weighted average fair value at grant date (in dollars per share) | $ 0.43 | $ 0.43 | [1]
Options granted, shares (in shares) | 0 | 0 |
Options granted, weighted average exercise price (in dollars per share) | $ 0 | $ 0 |
Options exercised, shares (in shares) | 0 | 0 |
Options exercised, weighted average exercise price (in dollars per share) | $ 0 | $ 0 |
Options exercised, weighted average fair value at grant date (in dollars per share) | $ 0 | $ 0 |
Options expired, shares (in shares) | 0 | 0 |
Options expired, weighted average exercise price (in dollars per share) | $ 0 | $ 0 |
Options expired, weighted average fair value at grant date (in dollars per share) | $ 0 | $ 0 |
Options cancelled or forfeited, shares (in shares) | (54,000) | 0 |
Options cancelled or forfeited, weighted average exercise price (in dollars per share) | $ 1.83 | $ 0 |
Options cancelled or forfeited, weighted average fair value at grant date (in dollars per share) | $ 0.43 | $ 0 |
Outstanding balance, shares (in shares) | 0 | 54,000 |
Outstanding balance, weighted average exercise price (in dollars per share) | $ 0 | $ 1.83 |
Outstanding balance, weighted average fair value at grant date (in dollars per share) | $ 0 | $ 0.43 |
[1] | Contract Vesting Term: The stock options vest ratably over a five year period.

X
- Definition Weighted average grant-date fair value of exercises in period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options expired during the reporting period as calculated by applying the disclosed option pricing methodology. + References No definition available. + Details
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- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option 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)(1)(iv)(03) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(01) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option 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)(1)(i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(02) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
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