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Note 27 - Share-based Compensation Expenses (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 14, 2015
Jul. 31, 2017
Jan. 31, 2017
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Allocated Share-based Compensation Expense, Total       $ 64,000 $ 136,000 $ 215,000 $ 484,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Total       0 233,000 0 $ 233,000
Restricted Stock [Member] | Two Management Consulting Service Providers [Member]              
Management Consulting Service Term   1 year          
Share Price   $ 1.67          
Allocated Share-based Compensation Expense, Total       0 18,750 62,600  
Restricted Stock [Member] | Employees and Directors [Member] | The 2015 Omnibus Securities and Incentive Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 266,238            
Share Price $ 2.10            
Allocated Share-based Compensation Expense, Total       $ 64,300   $ 152,000  
Restricted Stock [Member] | Director 1 [Member]              
Allocated Share-based Compensation Expense, Total         0    
Restricted Stock [Member] | Two Marketing Service Providers [Member]              
Allocated Share-based Compensation Expense, Total         0    
Restricted Stock [Member] | Management Consulting Service Provider [Member]              
Allocated Share-based Compensation Expense, Total         $ 0    
Investor Relations Services Provider [Member] | Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period     75,000