Note 3 - Inventories and Other Deferred Costs (Tables)

3 Months Ended

Mar. 31, 2021

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31, 2021		December 31, 2020
	(in thousands)
Raw materials	$	5,168	$	5,044
Work-in-process		7,586		6,004
Finished products		26,483		28,117
Other deferred costs		5,834		5,950
Total inventory and other deferred costs	$	45,071	$	45,115