Note 4 - Capital Stock (Details Textual) - USD ($) $ / shares in Units, $ in Millions |
Dec. 30, 2025 |
Jul. 11, 2025 |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|---|---|
| Preferred Units, Authorized (in shares) | 2,000,000 | |||
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.01 | |||
| Preferred Stock, Shares Outstanding (in shares) | 0 | 0 | ||
| Class of Warrant or Right, Outstanding (in shares) | 898,622 | 898,622 | ||
| Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ 5.33 | $ 5.33 | ||
| Private Placement [Member] | ||||
| Stock Issued During Period, Shares, New Issues (in shares) | 411,765 | 1,250,000 | ||
| Proceeds from Issuance of Common Stock | $ 0.7 | $ 2.0 | ||
| Shares Issued, Price Per Share (in dollars per share) | $ 1.7 | $ 1.6 |
| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of warrants or rights outstanding. No definition available.
|
| X | ||||||||||
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The number of preferred units authorized to be issued. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The cash inflow from the additional capital contribution to the entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Per share or per unit amount of equity securities issued. No definition available.
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Details
|