Note 5 - Supplemental Balance Sheet and Cash Flow Information (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	September 30, 2021			December 31, 2020
Raw materials	$	648		$	473
Work in process and finished goods		989			752
Inventory reserves		(91	)		(76	)
Total	$	1,546		$	1,149

Schedule of Cash and Cash Equivalents [Table Text Block]

	September 30, 2021		December 31, 2020		September 30, 2020		December 31, 2019
Cash and cash equivalents	$	220	$	559	$	956	$	508
Restricted cash included in other current assets		8		5		7		6
Restricted cash included in other noncurrent assets		11		3		3		4
Total cash, cash equivalents and restricted cash	$	239	$	567	$	966	$	518