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Note 24 - Share-based Compensation Expenses (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jan. 31, 2019
Dec. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Share-based Payment Arrangement, Expense     $ 102,000 $ 76,000 $ 203,000 $ 151,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value   $ 0 0   0  
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total   $ 340,000 190,000   190,000  
Director [Member] | Restricted Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 30,000          
Share Price $ 1.77          
Share-based Payment Arrangement, Expense     13,000   26,000  
Management Consulting and Advisor Service Providers [Member] | Restricted Stock [Member]            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period   250,000        
Share Price   $ 1.43        
Share-based Payment Arrangement, Expense     $ 89,000   $ 177,000  
Management Consulting and Advisor Service Term   1 year        
Issuance of Stock and Warrants for Services or Claims   $ 358,000