Accrued Liabilities

6 Months Ended

Jun. 30, 2016

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued Liabilities

Accrued liabilities consisted of the following (in thousands of dollars):

	June 30, 2016		December 31, 2015
Accrued compensation expenses	$	4,471	$	4,212
Accrued Genzyme co-promotion fees	2,179		2,089
Accrued other	2,260		2,388
Total accrued liabilities	$	8,910	$	8,689