OTHER EXPENSE (INCOME), NET (Tables)
 12 Months Ended
Dec. 31, 2017
OTHER EXPENSES [Abstract]  
Schedule of Other (Income) Expenses
 
 
Year ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
$
 
$
 
$
 
 
 
 
 
 
 
 
 
 
 
 
Doubtful debt provision
 
 
327
 
 
438
 
 
1,576
 
Change in liability for future earn-out
 
 
(593)
 
 
-
 
 
-
 
Recovery of pre-acquisition receivable
 
 
(1,384)
 
 
-
 
 
-
 
Other
 
 
(371)
 
 
275
 
 
598
 
Total other expense (income), net
 
 
(2,021)
 
 
713
 
 
2,174
 
Summary of the Allowance for Doubtful Accounts
 
 
Year ended December 31,
 
 
 
2017
 
2016
 
2015
 
 
 
$
 
$
 
$
 
 
 
 
 
 
 
 
 
 
 
 
Balance at beginning of period
 
 
2,014
 
 
1,576
 
 
4,390
 
Provision during the period
 
 
327
 
 
1,238
 
 
1,576
 
Doubtful account classified as bad debt
 
 
-
 
 
-
 
 
(4,390)
 
Reversal of allowance for doubtful account
 
 
-
 
 
(800)
 
 
-
 
Balance at end of period
 
 
2,341
 
 
2,014
 
 
1,576