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Other expenses (Tables)
12 Months Ended
Dec. 31, 2017
Disclosure of other operating expense [Abstract]  
Disclosure of other operating expense [text block]
 
 
December 31,
2017
 
December 31,
2016
 
December 31,
2015
 
Advertising and marketing
 
 
683
 
 
785
 
 
829
 
Regulatory fees
 
 
977
 
 
1,348
 
 
1,565
 
Rental - office and equipment
 
 
2,394
 
 
2,681
 
 
3,019
 
Administrative
 
 
6,846
 
 
7,468
 
 
7,469
 
Professional services
 
 
3,911
 
 
4,255
 
 
4,621
 
Maintenance and repairs
 
 
1,673
 
 
1,866
 
 
1,635
 
Other
 
 
322
 
 
129
 
 
244
 
Total
 
 
16,806
 
 
18,532
 
 
19,382