The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Note 5 - Goodwill and Other Intangible Assets (Details Textual) $ in Thousands	3 Months Ended	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Goodwill, Impairment Loss		$ (0)	$ 0
Amortization of Intangible Assets		4,000	5,000	$ 5,000
Trade Names [Member]
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)		$ 1,000	1,000
Trade Names [Member] \| Other Operating Income (Expense) [Member]
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)	$ 1,000		1,000
Print Segment [Member]
Number of Reporting Units		4
Advanced Materials And Chemicals [Member]
Number of Reporting Units		2
Goodwill, Impairment Loss		$ (0)	$ (0)