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Note 7 - Other Current Assets (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 4 Months Ended 12 Months Ended
Mar. 27, 2025
Mar. 17, 2025
Jan. 27, 2025
May 29, 2024
Mar. 31, 2022
May 31, 2023
Mar. 31, 2021
Mar. 31, 2025
Mar. 31, 2024
Jul. 31, 2023
Dec. 31, 2022
Apr. 30, 2022
Dec. 31, 2024
Dec. 31, 2023
Jan. 11, 2023
Jun. 30, 2022
May 01, 2022
Jan. 05, 2022
Financing Receivable, before Allowance for Credit Loss, Current               $ 2,653         $ 3,606          
Financing Receivable, Allowance for Credit Loss               1,889 $ 1,580       1,513 $ 1,559        
Loan to Unrelated Party [Member]                                    
Financing Receivable, before Allowance for Credit Loss, Current                                   $ 2,500
Loans Receivable, Interest Rate, Stated Percentage                                   7.50%
Proceeds from Collection of Notes Receivable                       $ 1,020            
Proceeds from Interest Received                       $ 60            
Revised Loan to Original Unrelated Party [Member]                                    
Financing Receivable, before Allowance for Credit Loss, Current                                 $ 1,480  
Loans Receivable, Interest Rate, Stated Percentage                                 5.00%  
Proceeds from Collection of Notes Receivable $ 210 $ 350   $ 130                            
Proceeds from Interest Received 2 60   60   $ 20       $ 20 $ 50              
Proceeds from Loans Principal Amount $ 210 $ 290   $ 70                            
Second Loan to Unrelated Party [Member]                                    
Financing Receivable, before Allowance for Credit Loss, Current                             $ 2,000      
Loans Receivable, Interest Rate, Stated Percentage                             12.00%      
Proceeds from Collection of Notes Receivable     $ 570                   770          
Proceeds from Interest Received     110                   350          
Proceeds from Loans Principal Amount     $ 460                   420          
Allowance for Credit Loss on Short Term Loans               $ 380 $ 20                  
Digital Sun [Member]                                    
Financing Receivable, before Allowance for Credit Loss, Current             $ 1,650                      
Proceeds from Collection of Notes Receivable         $ 1,030                          
Notes And Loans Receivable, Term (Year)             1 year                      
Financing Receivable, Modified, Subsequent Default         $ 620                          
Financing Receivable, Allowance for Credit Loss                               $ 620    
Digital Sun [Member] | Other Current Assets [Member]                                    
Financing Receivable, after Allowance for Credit Loss, Current                         $ 620