XML 53 R32.htm IDEA: XBRL DOCUMENT v3.8.0.1
Acquired intellectual property and other intangible assets (Tables)
 12 Months Ended
Dec. 31, 2017
Acquired Intellectual Property and Other Intangible Assets [Abstract]  
Disclosure of detailed information about intangible assets

Patents
$

 
Acquired intellectual
property and
reacquired rights
$

 
Total
$

Year ended December 31, 2017


 


 


Opening net book value
922

 
14,628

 
15,550

Amortization for the year
(149
)
 
(1,285
)
 
(1,434
)
Closing net book value
773

 
13,343

 
14,116

As at December 31, 2017


 


 


Cost
2,171

 
19,075

 
21,246

Accumulated amortization
(1,398
)
 
(5,732
)
 
(7,130
)
Net book value
773

 
13,343

 
14,116

 
 
 
 
 
 
Year ended December 31, 2016


 


 


Opening net book value
1,084

 
15,913

 
16,997

Additions
10

 
—

 
10

Amortization for the year
(172
)
 
(1,285
)
 
(1,457
)
Closing net book value
922

 
14,628

 
15,550

As at December 31, 2016


 


 


Cost
2,195

 
19,075

 
21,270

Accumulated amortization
(1,273
)
 
(4,447
)
 
(5,720
)
Net book value
922

 
14,628

 
15,550