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v3.25.0.1

Note 1 - Description of Business (Details Textual) $ / shares in Units, $ in Thousands |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Nov. 07, 2024 USD ($) $ / shares shares | Nov. 22, 2022 USD ($) | Nov. 30, 2024 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2027 USD ($) | Dec. 31, 2026 USD ($) | Dec. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Nov. 01, 2024 USD ($) | Oct. 31, 2024 USD ($)
Operating Income (Loss) |  |  |  |  |  |  |  | $ (18,845) | $ (17,259) |  |
Net Cash Provided by (Used in) Operating Activities |  |  |  |  |  |  |  | (18,047) | (5,249) |  |
Cash and Cash Equivalents, at Carrying Value |  |  |  | $ 31,741 |  |  |  | 31,741 | 43,652 |  |
Percentage of Workforce |  |  | 25.00% |  |  |  |  |  |  |  |
Savings From Reduction in Workforce |  |  | $ 4,300 |  |  |  |  |  |  |  |
Restructuring Charges |  |  |  | $ 600 |  |  |  |  |  |  |
Number of Directors |  |  |  |  |  |  |  |  |  | 5 | 8
Board of Directors, Annual Cash Compensation, Liability |  |  |  |  |  |  |  |  |  | $ 100 | $ 500
Authorized Value Of Securities Registered and Sold |  | $ 100,000 |  |  |  |  |  |  |  |  |
Restructuring Charges, Statement of Income or Comprehensive Income [Extensible Enumeration] |  |  |  | Nonoperating Income (Expense) |  |  |  |  |  |  |
Prefunded Warrants [Member] |  |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Outstanding (in shares) | shares | 2,934,690 |  |  |  |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | $ 0.001 |  |  |  |  |  |  |  |  |  |
Line of Credit [Member] | Perceptive Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year One |  |  |  |  |  |  |  | 34,400 |  |  |
Debt Instrument, Minimum Cash Balance | $ 3,000 |  |  |  |  |  |  |  |  |  |
Line of Credit [Member] | Perceptive Credit Agreement [Member] | Forecast [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year Two |  |  |  |  |  |  | $ 37,000 |  |  |  |
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year Three |  |  |  |  |  | $ 52,400 |  |  |  |  |
Debt Instrument, Covenant, Twelve Month Net Revenue Target, Year Four |  |  |  |  | $ 60,300 |  |  |  |  |  |
Debt Instrument, Maximum Operating Expense Covenant |  |  |  |  |  | $ 45,000 | $ 40,000 |  |  |  |
ATM Facility [Member] |  |  |  |  |  |  |  |  |  |  |
Authorized Value Of Securities Registered and Sold |  | $ 40,000 |  |  |  |  |  |  |  |  |
Registered Direct Offering [Member] |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance or Sale of Equity | $ 6,800 |  |  |  |  |  |  | $ 7,000 | $ 0 |  |
Stock Issued During Period, Shares, New Issues (in shares) | shares | 3,000,000 |  |  |  |  |  |  |  |  |  |

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