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Note 2 - Cash, Cash Equivalents and Restricted Cash (Details Textual) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
CHINA | Lucky Hua Guang Graphics Co Ltd [Member]    
Escrow Deposit $ 5 $ 4
BRAZIL    
Restricted Cash and Investments, Noncurrent, Total 6 3
Cash Collateralized Letter Of Credit Facility [Member]    
Restricted Cash and Investments, Noncurrent, Total $ 44 $ 45