Product Revenue and Concentration of Credit Risks (Tables)

9 Months Ended

Sep. 30, 2021

Disaggregation of Revenue [Abstract]

Schedule of revenue provisions, and credits or payments for sales-related deductions

The following table summarizes the provisions, and credits/payments, for sales-related deductions.

(In thousands)	Rebates		Trade Discounts, Distributor Fees and Other		Total
Balance at December 31, 2020	$	1,161	$	129	$	1,290
Current period provisions	7,134		1,903		9,037
Payments/credits	(4,402)		(1,773)		(6,175)
Balance at September 30, 2021	$	3,893	$	259	$	4,152