Note 2 - Going Concern (Details Textual) - USD ($) $ in Thousands |
6 Months Ended | ||
|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Dec. 31, 2025 |
|
| Cash | $ 9,226 | ||
| Retained Earnings (Accumulated Deficit) | (115,558) | $ (111,615) | |
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | (3,698) | $ (4,901) | |
| Private Placement [Member] | |||
| Proceeds from Issuance or Sale of Equity | 10,277 | ||
| May 2026 Securities Purchase Agreement [Member] | |||
| Equity Offering, Maximum Amount | $ 7,434 | ||
| X | ||||||||||
- Definition Maximum amount to be issued in equity offering. No definition available.
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| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activity, including, but not limited to, discontinued operation. Operating activity includes, but is not limited to, transaction, adjustment, and change in value not defined as investing or financing activity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of accumulated undistributed earnings (deficit). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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