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v3.24.1

Note 1 - Description of Business and Significant Accounting Policies (Details Textual) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2023 USD ($) a $ / shares shares | Dec. 31, 2022 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) | Jul. 01, 2023 USD ($) | Jun. 29, 2022 $ / shares shares | Apr. 01, 2019 USD ($)
Capital Units, Authorized (in shares) | shares |  |  |  |  | 48,000,000 |
Common Stock, Shares Authorized (in shares) | shares | 43,000,000 | 43,000,000 |  |  | 43,000,000 |
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares | $ 0.0001 | $ 0.0001 |  |  | $ 0.0001 |
Preferred Stock, Shares Authorized (in shares) | shares |  |  |  |  | 5,000,000 |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares |  |  |  |  | $ 0.0001 |
Asset Impairment Charges | $ | $ 0 | $ 0 | $ 0 |  |  |
Impairment of Deferred Development Costs | $ | $ 0 | $ 0 |  |  |  |
Weighted Average Number of Shares Outstanding, Basic (in shares) | shares | 19,600,000 | 19,400,000 |  |  |  |
Weighted Average Number of Shares Outstanding, Diluted (in shares) | shares | 19,700,000 | 19,400,000 |  |  |  |
Subsidized Stewardship and Conservation Efforts [Member] |  |  |  |  |  |
Area of Land (Acre) | a | 9,000 |  |  |  |  |
Government Assistance, Amount, Cumulative | $ |  |  |  | $ 510,000,000,000 |  |
Grants Receivable | $ | $ 75,000 |  |  |  |  | $ 1,100,000
Government Assistance, Amount | $ | $ 300,000 | $ 400,000 |  |  |  |
Minimum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 3 years |  |  |  |  |
Maximum [Member] |  |  |  |  |  |
Property, Plant and Equipment, Useful Life (Year) | 40 years |  |  |  |  |
HAWAII |  |  |  |  |  |
Area of Land (Acre) | a | 22,300 |  |  |  |  |

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