Quarterly report [Sections 13 or 15(d)]

Note 9 - Notes Payable, Net (Details Textual)

v3.25.3
Note 9 - Notes Payable, Net (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 05, 2022
Aug. 01, 2020
Aug. 30, 2020
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Sep. 12, 2025
Dec. 31, 2024
Convertible Debt, Current       $ 1,937   $ 1,937     $ 0
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]   Prime Rate [Member]              
Secured Promissory Note [Member] | B Riley [Member]                  
Debt Instrument, Face Amount       2,000   2,000      
Debt Instrument, Maturity, Minimum Net Proceeds From Sale of Equity Interests               $ 2,400  
Debt Instrument, Interest Rate, Stated Percentage               10.00%  
Debt Instrument, Fee Amount, Percentage of Original Principal               10.00%  
Debt Instrument, Fee Amount               $ 200  
Debt Instrument, Default, Interest Rate               5.00%  
Convertible Debt, Current       2,000   2,000      
Debt Issuance Costs, Net       $ 76   $ 76      
Debt Instrument, Interest Rate, Effective Percentage       23.50%   23.50%      
Debt Instrument, Additional Liability Upon Debt Repayment       $ 200   $ 200      
Interest Payable       10   10      
Interest Expense, Debt       23          
Secured Promissory Note [Member] | B Riley [Member] | Maximum [Member]                  
Debt Instrument, Face Amount               $ 2,000  
PWB Agreement [Member] | Term Loan [Member]                  
Debt Instrument, Interest Rate, Stated Percentage     4.50%            
Line of Credit Facility, Maximum Borrowing Capacity     $ 2,000            
Debt Instrument, Basis Spread on Variable Rate     0.50%            
Long-Term Debt, Gross       $ 2,000   2,000      
Debt Instrument, Covenant Compliance, Maximum Deposits Outside Of United States           $ 1,000      
Line of Credit Facility, Interest Rate During Period       6.28% 8.67% 7.21% 8.71%    
Interest Expense, Debt       $ 31 $ 44 $ 108 $ 130    
Promissory Note [Member] | Subordinated Debt [Member]                  
Debt Instrument, Face Amount $ 5,000                
Debt Instrument, Interest Rate, Stated Percentage 0.00%                
Debt Instrument, Basis Spread on Variable Rate 5.00%                
Long-Term Debt, Gross       $ 2,500   $ 2,500      
Line of Credit Facility, Interest Rate During Period       6.75% 7.00% 7.49% 7.52%    
Interest Expense, Debt       $ 45 $ 66 $ 150 $ 210    
Debt Instrument, Periodic Payment, Number of Installments 16                
Subordinated Debt       $ 4,055   $ 4,055      
Debt Instrument, Discount Rate, Percentage           7.50%