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Note 11 - Share-based Compensation (Details Textual) - USD ($) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Aug. 05, 2024 | Feb. 28, 2024 | Jan. 31, 2024 | Jul. 31, 2023 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Feb. 28, 2023
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares) |  |  |  |  |  | 0 |  |
Share-Based Payment Arrangement, Expense |  |  |  |  |  | $ 6,312,000 | $ 2,846,000 |
The 2017 Equity and Incentive Award Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  | 400,000 |  | 400,000 |  |  |  | 400,000
Annual Board Service [Member] | Year 2023 [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  |  |  |  |  | 250,000 |
Annual Board Service [Member] | Year 2024 [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  |  |  |  | 312,500 |  |
Board Committee Service [Member] | Year 2023 [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) |  |  |  |  |  |  | 1 year |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  |  |  |  |  | 78,000 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) |  |  |  |  |  |  | 10 years |
Share Price (in dollars per share) |  |  |  |  |  |  | $ 12.11 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share) |  |  |  |  |  |  | $ 3.88 |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year) (Year) |  |  |  |  |  |  | 5 years 3 months |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  |  |  |  |  | 28.00% |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  |  | 4.16% |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 215,334 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares (in shares) |  |  |  |  |  | 0 |  |
Board Committee Service [Member] | Year 2024 [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) |  |  |  |  |  | 1 year |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  |  |  |  | 87,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) |  |  |  |  |  | 10 years |  |
Share Price (in dollars per share) |  |  |  |  |  | $ 22.25 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share) |  |  |  |  |  | $ 8.87 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year) (Year) |  |  |  |  |  | 5 years 3 months |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  |  |  |  | 32.10% |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  | 4.40% |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 303,125 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares (in shares) |  |  |  |  |  | 96,375 |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount |  |  |  |  |  | $ 900,000 |  |
Chief Executive Officer [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  | 400,000 |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) |  |  |  |  |  | 10 years |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share) |  |  |  |  |  | $ 15.75 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year) (Year) |  |  |  |  |  | 6 years |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  |  |  |  | 31.00% |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  | 3.82% |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares (in shares) |  |  |  |  |  | 400,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share) |  |  |  |  |  | $ 6.02 |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount |  |  |  |  |  | $ 1,600,000 |  |
Chief Executive Officer [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 133,334 |  |
Chief Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 133,333 |  |
Chief Executive Officer [Member] | Share-Based Payment Arrangement, Tranche Three [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 133,333 |  |
Chief Executive Officer [Member] | Year 2023 [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) |  |  |  |  |  |  | 400,000 |
Continued Service of the Chairman of the Board [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year) |  |  |  |  |  | 10 years |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share) |  |  |  |  |  | $ 9.08 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term (Year) (Year) |  |  |  |  |  | 6 years 1 month 13 days |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate |  |  |  |  |  | 37.00% |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate |  |  |  |  |  | 3.49% |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares (in shares) |  |  |  |  |  | 266,666 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Exercise Price (in dollars per share) |  |  |  |  |  | $ 3.94 |  |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount |  |  |  |  |  | $ 700,000 |  |
Continued Service of the Chairman of the Board [Member] | Share-Based Payment Arrangement, Tranche One [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 133,334 |  |
Continued Service of the Chairman of the Board [Member] | Share-Based Payment Arrangement, Tranche Two [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 133,333 |  |
Continued Service of the Chairman of the Board [Member] | Share-Based Payment Arrangement, Tranche Three [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares (in shares) |  |  |  |  |  | 133,333 |  |
Chair Sellers [Member] | The 2023 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross (in shares) |  |  |  | 63,500 |  |  |  |
Director Case [Member] | The 2023 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares) | 6,659 |  |  |  |  |  |  |
Director Case [Member] | The 2024 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period (in shares) | 3,124 |  |  |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) |  |  |  |  |  | 3 years |  |
Share-Based Payment Arrangement, Expense |  |  |  |  |  | $ 600,000 | $ 600,000 |
Restricted Stock [Member] | The 2017 Equity and Incentive Award Plan [Member] |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cancellation Expense |  |  |  |  | $ 631,000 |  |  |
Restricted Stock [Member] | Chair Sellers [Member] | The 2023 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares) |  |  |  | 18,804 |  |  |  |
Restricted Stock [Member] | CEO Randle [Member] | The 2017 Equity and Incentive Award Plan [Member] |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cancellation Expense |  |  |  |  | 229,000 |  |  |
Restricted Stock [Member] | CEO Randle [Member] | The 2024 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted (in shares) |  | 28,511 |  |  |  |  |  |
Restricted Stock [Member] | Director Case [Member] | The 2017 Equity and Incentive Award Plan [Member] |  |  |  |  |  |  |  |
Deferred Compensation Arrangement with Individual, Cancellation Expense |  |  |  |  | $ 402,000 |  |  |
Restricted Stock [Member] | Director Case [Member] | The 2023 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures (in shares) | 56,000 |  |  |  |  |  |  |
Restricted Stock [Member] | Director Case [Member] | The 2024 Plan [Member] |  |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures (in shares) | 56,000 |  |  |  |  |  |  |
Share-Based Payment Arrangement, Option [Member] |  |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  |  |  | $ 4,300,000 | $ 1,400,000 |

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition The estimated measure of the percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over 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 (f)(2)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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