Note 7 - Inventories (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	September 30, 2020		December 31, 2019
Raw materials	$	4,800	$	5,369
Work in process		1,042		949
Inventory consigned to others		49		54
Finished goods		1,033		810
Total inventories	$	6,924	$	7,182

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
Excess and obsolete inventory charges	$	105	$	98	$	410	$	341