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Note 1 - Nature of Operations (Details Textual) |  | 12 Months Ended
--- | --- | ---
May 11, 2023 USD ($) shares | Dec. 31, 2023 USD ($) ft²
Number of Operating Segments |  | 3
Stock Issued During Period, Value, New Issues |  | $ 19,244,000
At-the-Market Issuance Sales Agreement [Member] |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 921,797 |
Aggregate Offering Price of Stock | $ 20,000 |
Stock Issued During Period, Value, New Issues | $ 19,244 |
Commission Fee, Percentage of Gross Proceeds | 3.00% |
Facility in Penang, Malaysia [Member] |  |
Area of Real Estate Property (Square Foot) | ft² |  | 25,000

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