XML 19 R8.htm IDEA: XBRL DOCUMENT v3.10.0.1
Accrued Liabilities
9 Months Ended
Sep. 30, 2018
Payables and Accruals [Abstract]  
Accrued Liabilities
Accrued Liabilities
 
Accrued liabilities consisted of the following (in thousands of dollars):
 
 
September 30,
2018
 
December 31,
2017
Accrued compensation expenses
$
6,409

 
$
5,293

Accrued other
2,852

 
2,882

Total accrued liabilities
$
9,261

 
$
8,175