v3.25.1

Note 11 - Madryn Long-term Debt and Convertible Notes (Details Textual) - USD ($) |  |  |  |  |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 05, 2024 | Oct. 30, 2024 | Sep. 11, 2024 | Jul. 26, 2024 | Oct. 04, 2023 | Dec. 09, 2020 | Dec. 31, 2024 | Dec. 31, 2023 | Nov. 26, 2024 | Jul. 29, 2024 | Apr. 23, 2024
Gain (Loss) on Extinguishment of Debt |  |  |  |  |  |  | $ (11,355,000) | $ (2,040,000) |  |  |
Series X Convertible Preferred Stock [Member][ |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | $ 0.0001 |  |  |  |  |  |
Shares Issued, Price Per Share (in dollars per share) |  |  |  |  | $ 221.1 |  |  |  |  |  |
Madryn Noteholders [Member] | Conversion from Madryn Noteholders, Outstanding Debt Converted to Convertible Instruments [Member] | Series X Convertible Preferred Stock [Member][ |  |  |  |  |  |  |  |  |  |  |
Debt Conversion, Original Debt, Amount |  |  |  |  | $ 26,695,000 |  |  |  |  |  |
Debt Conversion, Converted Instrument, Amount |  |  |  |  | $ 22,792,000 |  |  |  |  |  |
Convertible Preferred Stock, Shares Issued upon Conversion (in shares) |  |  |  |  | 248,755 |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt |  |  |  |  | $ (2,000,000) |  |  |  |  |  |
Madryn Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  |  | $ 42,500,000 |  |  |  |  |
Secured Subordinated Convertible Notes [Member] | Madryn Noteholders [Member] |  |  |  |  |  |  |  |  |  |  |
Preferred Stock, Par or Stated Value Per Share (in dollars per share) |  |  |  |  | $ 8.5 |  |  |  |  |  |
Debt Instrument, Default, Increase in Interest Rate |  |  |  |  | 4.00% |  |  |  |  |  |
Long-Term Debt, Gross |  |  |  |  |  |  | 27,100,000 |  |  |  |
Interest Expense, Operating and Nonoperating |  |  |  |  |  |  | 3,502,000 | 2,438,000 |  |  |
Long-Term Debt |  |  |  |  |  |  | 35,176,000 |  |  |  |
Repayments of Long-Term Debt |  |  |  |  |  |  | 0 | $ 0 |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Dec. 09, 2025 |  |  |  |  |  |
Bridge Financing [Member] | Madryn Noteholders [Member] |  |  |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  |  |  | 0 |  |  |  |
Long-Term Debt |  |  |  |  |  |  | $ 8,519,000 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  | $ 2,238,000
Debt Instrument, Maximum Additional Principal |  |  |  |  |  |  |  |  | $ 6,000,000 | $ 3,000,000 | $ 2,762,000
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  |  |  |  |  |  | 12.00%
Debt Instrument, Default Interest Rate |  |  |  |  |  |  |  |  |  |  | 15.00%
Proceeds from Issuance of Debt | $ 1,500,000 | $ 1,000,000 | $ 1,000,000 | $ 1,000,000 |  |  |  |  |  |  |
Loan and Security Agreement [Member] | Madryn Noteholders [Member] |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Maximum Additional Principal |  |  |  |  |  |  |  |  | $ 1,200,000 |  |

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