Note 5 - Revenue (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Year ended December 31,
	2021		2020		2019
Display products	$	3,666	$	3,077	$	3,180
Telecommunication products		4,349		3,563		4,064
Specialty glass products		2,008		1,884		1,594
Environmental substrate and filter products		1,584		1,333		1,440
Life science products		1,232		981		995
All Other (1)		1,243		465		230
Total Revenue	$	14,082	$	11,303	$	11,503
Impact of foreign currency movements (2)		38		44		153
Cumulative adjustment related to customer contract (3)				105
Net sales of reportable segments and All Other	$	14,120	$	11,452	$	11,656