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Note 29 - Discontinued Operations (Tables)
 12 Months Ended
Dec. 31, 2019
Statement Line Items [Line Items]  
Disclosure of discontinued operations net income components [text block]
    Year ended December 31,
    2017
 Income from discontinued operations    
1,848
  
 After tax gain on the sale of Conduit    
89,694
  
 Net Income for discontinued operations    
91,542
  
Disclosure of sale of discontinued operations [text block]
Cash received    
331,295
  
Transaction and other costs    
(3,663
 )
Carrying amount of net assets sold    
(137,814
 )
Gain on sale before income tax    
189,817
  
Income tax expense on gain    
(100,123
 )
Gain on sale after income tax    
89,694
  
Disclosure of discontinued operations [text block]
    Year ended December 31,
    2017
Revenues    
11,899
  
Gross profit    
4,496
  
Net income    
1,848
  
    2017
Cash at the beginning    
18,820
  
Cash at the end    
206
  
(Decrease) Increase in cash    
(18,614
 )
         
(Used in) provided by operating activities    
(3,046
 )
Provided by (used in) investing activities    
32
  
Used in financing activities    
(15,600
 )
    At January 19, 2017
Non-current assets    
87,332
  
Current assets    
69,332
  
Total assets of disposal group classified as held for sale    
156,664
  
Non-current liabilities    
5,294
  
Current liabilities    
13,556
  
Total liabilities of disposal group classified as held for sale    
18,850