Product Revenue Reserves and Allowance Product Revenue Reserves and Allowance (Tables)

12 Months Ended

Dec. 31, 2017

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of product revenue allowance and reserve categories

The following table summarizes activity in each of the product revenue allowance and reserve categories for the twelve months ended December 31, 2017 (in thousands):

	Chargebacks, Discounts, and Fees		Government and Other Rebates		Returns		Total
Beginning balance at December 31, 2016	$	—	$	—	$	—	$	—
Provision related to sales in the current year, net of credits and payments	1,986		1,231		421		3,638
Ending balance at December 31, 2017	$	1,986	$	1,231	$	421	$	3,638