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