Note 5 - Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	As of March 31,		As of December 31,
(in thousands)	2023		2022
Raw materials	$	1,706	$	1,338
Work-in-process		151		353
Total inventories	$	1,857	$	1,691