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SUPPLEMENTAL BALANCE SHEET AND CASH FLOW INFORMATION (inventories and supplies) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Inventories and supplies
Raw materials	$ 11,563	$ 5,316
Semi-finished goods	7,777	6,708
Finished goods	32,938	21,995
Supplies	6,389	6,041
Reserve for excess and obsolete items	(6,400)	(5,132)	$ (11,748)
Inventories and supplies, net of reserves	52,267	34,928
Changes in reserves for excess and obsolete items
Balance, beginning of year	5,132	11,748	6,600
Balance, end of year	6,400	5,132	11,748
Reserve for excess and obsolete inventory [Member]
Changes in reserves for excess and obsolete items
Amounts charged to expense	2,940	3,513	6,713
Write-offs and sales	$ (1,672)	$ (10,129)	$ (1,565)

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