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Note 16 - Related Party Transactions (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 26, 2018
Mar. 12, 2018
Mar. 08, 2018
Jun. 23, 2017
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 08, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number   5,157,998 5,157,998          
Share-based Payment Arrangement, Accelerated Cost         $ 14,667      
Repayments of Long-term Debt, Total           $ 8,034 $ 76,787  
Share-based Payment Arrangement, Expense           10,341 30,393  
Promissory Notes [Member]                
Debt Instrument, Interest Rate, Stated Percentage               10.00%
Debt Instrument, Face Amount               $ 10,000
Restricted Stock Units (RSUs) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number     4,960,498          
Share-based Payment Arrangement, Expense           $ 5,819 $ 15,104  
Marlin Capital Investments, LLC [Member]                
Common Shares to be Received by RSU Holder             2,000,000  
Marlin Capital Investments, LLC [Member] | Restricted Stock Units (RSUs) [Member]                
Share Based Compensation Expense (Benefit)             $ 1,792  
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number   500,000 500,000          
Share-based Payment Arrangement, Accelerated Cost         $ 906      
Frost Gamma [Member] | Promissory Notes [Member]                
Debt Instrument, Face Amount               5,000
Repayments of Long-term Debt, Total             533  
Repayments of Long-term Debt Including Accrued Interest $ 5,713              
Board of Directors Chairman [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number         2,500,000      
Consultancy Services Agreement Period       4 years        
Share-based Payment Arrangement, Noncash Expense, Total             302  
Share-based Payment Arrangement, Expense         $ 6,468      
Board of Directors Chairman [Member] | Promissory Notes [Member]                
Debt Instrument, Face Amount               4,000
Repayments of Long-term Debt, Total             426  
Repayments of Long-term Debt Including Accrued Interest 4,570              
Board of Directors Chairman [Member] | Restricted Stock Units (RSUs) [Member]                
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number     2,500,000          
Investor [Member] | Promissory Notes [Member]                
Debt Instrument, Face Amount               $ 1,000
Repayments of Long-term Debt, Total             $ 107  
Repayments of Long-term Debt Including Accrued Interest $ 1,143