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Note 23 - Share-based Compensation Expenses (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Share-based Payment Arrangement, Expense   $ 100 $ 1,919    
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total $ 310 310      
Forecast [Member]          
Share-based Payment Arrangement, Expense       $ 40 $ 270
Restricted Stock [Member] | Management Consulting and Advisory Service Providers [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     430,000    
Shares Issued, Price Per Share (in dollars per share)     $ 1.11    
Share-based Payment Arrangement, Expense     $ 20    
Management Consulting and Advisory Service Term (Year)     2 years    
Issuance of Stock and Warrants for Services or Claims     $ 480    
The 2020 Omnibus Securities and Incentive Plan [Member] | Restricted Stock [Member]          
Share-based Payment Arrangement, Expense   $ 80      
The 2020 Omnibus Securities and Incentive Plan [Member] | Restricted Stock [Member] | Independent Director [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) 30,000        
Shares Issued, Price Per Share (in dollars per share) $ 3.13 $ 3.13      
Share-based Payment Arrangement, Expense   $ 20      
The 2015 Omnibus Securities and Incentive Plan [Member] | Restricted Stock [Member] | Management and Employees [Member]          
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)     1,630,000    
Share-based Payment Arrangement, Expense     $ 1,900