Note 4 - Liquidity, Going Concern, and Management's Plans (Details Textual) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
May 13, 2026 |
Dec. 31, 2025 |
|
| Operating Income (Loss) | $ (127) | $ (1,829) | $ (1,230) | $ (3,913) | ||
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | (1,498) | $ (3,100) | ||||
| Cash and Cash Equivalent | 11,940 | 11,940 | $ 13,709 | |||
| At The Market Sales Agreement [Member] | ||||||
| Equity Offering, Maximum Offering Amount | $ 3,800 | $ 3,800 | $ 3,800 | |||
| X | ||||||||||
- Definition Maximum value of company's equity authorized for issuance under equity offering. No definition available.
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| X | ||||||||||
- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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