v3.26.1
Note 8 - Convertible Notes (Details Textual)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Jul. 26, 2024
USD ($)
May 28, 2024
USD ($)
Mar. 01, 2024
USD ($)
Apr. 27, 2023
USD ($)
Jan. 31, 2026
shares
Dec. 31, 2025
USD ($)
$ / shares
shares
Dec. 31, 2025
USD ($)
$ / shares
Dec. 31, 2024
USD ($)
Mar. 31, 2024
USD ($)
Mar. 24, 2024
USD ($)
$ / shares
May 01, 2023
USD ($)
Amortization of Debt Issuance Costs and Discounts             $ 277 $ 904      
Debt Conversion, Converted Instrument, Amount             246 0      
Unsecured Debt, Current           $ 67 67 65      
Interest Payable, Current           $ 58 58 37      
Repayments of Convertible Debt             $ (0) 1,991      
Common Stock [Member]                      
Share Price (in dollars per share) | $ / shares           $ 28.2 $ 28.2        
Unsecured Debt [Member]                      
Long-Term Debt, Gross           $ 125 $ 125        
Long-Term Debt, Fair Value           201 201        
Unsecured Convertible Notes [Member]                      
Debt Instrument, Face Amount           $ 175 $ 175     $ 525  
Debt Instrument, Convertible, Conversion Price | $ / shares                   $ 24.5  
Embedded Derivative, Fair Value of Embedded Derivative Liability                 $ 224    
Embedded Derivative, Fair Value   $ 242                  
Unrealized Gain (Loss) on Derivatives   $ 18                  
Debt Instrument, Interest Rate, Effective Percentage           144.00% 144.00%        
Amortization of Debt Issuance Costs and Discounts             $ 275 62      
Debt Conversion, Converted Instrument, Amount             246        
Debt Instrument, Unamortized Discount           $ 50 50        
Debt Instrument, Convertible, If-converted Value in Excess of Principal             $ 26        
Unsecured Convertible Notes [Member] | 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             7,143        
Unsecured Convertible Notes [Member] | Conversion of Unsecured Convertible Notes To Common Stock [Member] | Subsequent Event [Member]                      
Debt Conversion, Converted Instrument, Shares Issued | shares         7,143            
Original Issue Discount Senior Secured Convertible Debentures [Member]                      
Debt Instrument, Face Amount                     $ 3,300
Debt Instrument, Interest Rate, Effective Percentage           173.00% 173.00%        
Amortization of Debt Issuance Costs and Discounts               $ 800      
Debt Instrument, Unamortized Discount                     $ 300
Debt Instrument, Increase (Decrease), Net       $ 183              
Debt Instrument, Redemption Price, Percentage       20.00%              
Repayments of Convertible Debt $ 433   $ 45