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Note 8 - Other Current Assets, Net (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 4 Months Ended 5 Months Ended
Mar. 17, 2023
Apr. 25, 2022
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2022
Apr. 30, 2022
Sep. 30, 2022
Jun. 30, 2022
May 01, 2022
Apr. 21, 2022
Jan. 05, 2022
Dec. 31, 2021
Financing Receivable, before Allowance for Credit Loss, Current         $ 2,197             $ 1,646
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 Interest Received         20   $ 30          
Second Loan to Unrelated Party [Member]                        
Financing Receivable, before Allowance for Credit Loss, Current                   $ 100    
Loans Receivable, Interest Rate, Stated Percentage                   5.00%    
Second Loan to Unrelated Party [Member] | Subsequent Event [Member]                        
Proceeds from Collection of Notes Receivable $ 100                      
Proceeds from Interest Received $ 5                      
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, Troubled Debt Restructuring, Subsequent Default     $ 620                  
Financing Receivable, Allowance for Credit Loss, Ending Balance               $ 620        
Digital Sun [Member] | Other Current Assets [Member]                        
Financing Receivable, after Allowance for Credit Loss, Current, Total         $ 620