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Note 8 - Other Current Assets (Details Textual) - USD ($)
$ in Thousands
4 Months Ended 5 Months Ended
Apr. 25, 2022
Mar. 31, 2022
Apr. 30, 2022
Sep. 30, 2022
Jun. 30, 2022
May 01, 2022
Apr. 21, 2022
Jan. 05, 2022
Dec. 31, 2021
Mar. 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       $ 30            
Second Loan to Unrelated Party [Member]                    
Financing Receivable, before Allowance for Credit Loss, Current             $ 100      
Loans Receivable, Interest Rate, Stated Percentage             5.00%      
Digital Sun [Member]                    
Financing Receivable, before Allowance for Credit Loss, Current                   $ 1,650
Proceeds from Collection of Notes Receivable   $ 1,030                
Financing Receivable, Troubled Debt Restructuring, Subsequent Default   $ 620                
Financing Receivable, Allowance for Credit Loss, Ending Balance         $ 620