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Note 25 - Share-based Compensation Expenses (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Jan. 31, 2019
Dec. 31, 2018
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Share-based Payment Arrangement, Expense     $ 104,000 $ 64,000 $ 307,000 $ 215,000
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 90,000   90,000  
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     14,000   40,000  
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     $ 90,000   $ 267,000  
Management Consulting and Advisor Service Term   1 year        
Issuance of Stock and Warrants for Services or Claims   $ 358,000