Accrued Expenses

12 Months Ended

Dec. 31, 2017

Accrued Expenses

Accrued Expenses

7. Accrued Expenses

Accrued expenses are comprised of the following, in thousands of dollars:

	December 31, 2017		December 31, 2016
Accrued compensation	$	10,279	$	9,145
Accrued professional fees		2,890		6,447
Accrued clinical trial and clinical supply costs		6,996		4,350
Accrued product costs		726		1,794
Accrued interest expense		—		61
Other accrued expenses		6,414		5,630
	$	27,305	$	27,427