Product Revenue and Concentration of Credit Risks (Tables)

6 Months Ended

Jun. 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	4,073		1,180		5,253
Payments/credits	(1,521)		(1,095)		(2,616)
Balance at June 30, 2021	$	3,713	$	214	$	3,927