Note 9 - Convertible Notes (Details Textual) - Unsecured Convertible Notes [Member] $ / shares in Units, $ in Thousands |
1 Months Ended | 3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|---|
|
Jan. 31, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
shares
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Mar. 24, 2024
USD ($)
$ / shares
|
|
| Debt Instrument, Face Amount | $ 175 | $ 525 | |||||
| Debt Instrument, Interest Rate, Stated Percentage | 0.00% | ||||||
| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares | $ 24.5 | ||||||
| Long-Term Debt | $ 0 | $ 0 | |||||
| Amortization of Debt Issuance Costs and Discounts | $ 0 | $ 55 | $ 3 | $ 93 | |||
| Conversion of Unsecured Convertible Notes To Common Stock [Member] | |||||||
| Debt Conversion, Original Debt, Amount | $ 350 | ||||||
| Debt Conversion, Converted Instrument, Shares Issued | shares | 14,286 | ||||||
| Debt Instrument, Convertible, Number of Equity Instruments | 7,144 | ||||||
| X | ||||||||||
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition The price per share of the conversion feature embedded in the debt instrument. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation. 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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