Note 10 - Net Income (Loss) Per Share (Details Textual) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|
| Preferred Stock, Shares Issued (in shares) | 883,000 | 883,000 |
| Preferred Stock, Shares Outstanding (in shares) | 883,000 | 883,000 |
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 | $ 0.001 |
| Preferred Stock, Value, Issued | $ 3,532,000 | $ 3,532,000 |
| Series A Preferred Stock [Member] | ||
| Preferred Stock, Shares Issued (in shares) | 883,000 | 883,000 |
| Preferred Stock, Shares Outstanding (in shares) | 883,000 | 883,000 |
| Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ 0.001 | $ 0.001 |
| Preferred Stock, Value, Issued | $ 3,532,000 | |
| Preferred Stock, Dividend Rate, Percentage | 5.00% | |
| Preferred Stock, Liquidation Preference Per Share (in dollars per share) | $ 4 |
| X | ||||||||||
- Definition The percentage rate used to calculate dividend payments on preferred stock. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| 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
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| X | ||||||||||
- Definition Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| 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
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| X | ||||||||||
- Definition Aggregate par or stated value of issued nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable preferred shares, par value and other disclosure concepts are in another section within stockholders' equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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