Note 3 - Inventory and Other Deferred Costs (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	December 31, 2020		December 31, 2019
	(in thousands)
Raw materials	$	5,044	$	5,359
Work-in-process		6,004		6,238
Finished products		28,117		23,032
Other deferred costs		5,950		4,898
Total inventory and other deferred costs	$	45,115	$	39,527