Note 1 - Organization (Details Textual) $ in Thousands |
3 Months Ended | |||||
|---|---|---|---|---|---|---|
Jun. 02, 2025 |
May 02, 2025 |
Mar. 31, 2026
USD ($)
|
Mar. 31, 2025
USD ($)
|
Jan. 12, 2026
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Retained Earnings (Accumulated Deficit) | $ (269,281) | $ (262,396) | ||||
| Cash Provided by (Used in) Operating Activity, Including Discontinued Operation | (2,123) | $ (1,965) | ||||
| Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation | 3,993 | |||||
| Cash | $ 3,743 | |||||
| Line of Credit [Member] | ||||||
| Line of Credit Facility, Maximum Borrowing Capacity | $ 250 | |||||
| Reverse Stock Split [Member] | ||||||
| Stockholders' Equity Note, Stock Split, Conversion Ratio | 15 | 15 | ||||
| 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 and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. 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 Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. 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 Amount of accumulated undistributed earnings (deficit). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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