Product revenue reserves and allowances (Tables)

9 Months Ended

Sep. 30, 2021

Product revenue reserves and allowances

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 nine months ended September 30, 2021 (in thousands):

	Trade		Government
	discounts		rebates and
	and		other
	allowances		incentives		Returns		Total
Balance at December 31, 2020	$	23	$	67	$	31	$	121
Provision related to sales in the current year		—		—		—		—
Adjustments related to prior period sales		—		—		—		—
Credits and payments made		(23)		(67)		(31)		(121)
Ending balance at September 30, 2021	$	—	$	—	$	—	$	—