Annual report [Section 13 and 15(d), not S-K Item 405]

Note 9 - Notes Payable, Net (Details Textual)

v3.25.4
Note 9 - Notes Payable, Net (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Dec. 05, 2022
Aug. 01, 2020
Aug. 30, 2020
Dec. 31, 2025
Dec. 31, 2024
Sep. 12, 2025
Convertible Debt, Current       $ 2,008 $ 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    
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    
Debt Issuance Costs, Net       $ 76    
Debt Instrument, Interest Rate, Effective Percentage       23.40%    
Debt Instrument, Additional Liability Upon Debt Repayment       $ 200    
Interest Payable       60    
Interest Expense, Debt       143    
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    
Debt Instrument, Covenant Compliance, Maximum Deposits Outside Of United States       $ 1,000    
Line of Credit Facility, Interest Rate During Period       7.21% 8.55%  
Interest Expense, Debt       $ 108 $ 171  
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       $ 2,187    
Line of Credit Facility, Interest Rate During Period       7.93% 7.79%  
Interest Expense, Debt       $ 190 $ 271  
Debt Instrument, Periodic Payment, Number of Installments 16          
Subordinated Debt       $ 4,055    
Debt Instrument, Discount Rate, Percentage       7.50%