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Schedule II - Valuation and Qualifying Accounts (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Balance at beginning of year $ 519 $ 484 $ 486
Provision for bad debt 293 179 13
Write-offs, net of recoveries (40) (144) (15)
Sale of Molded Fiber business (39) 0 0
Balance at end of year $ 733 $ 519 $ 484