Note 5 - Goodwill and Other Intangible Assets (Details Textual)	3 Months Ended	12 Months Ended
Dec. 31, 2022 USD ($)	Dec. 31, 2024 USD ($) ReportingUnit	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Goodwill, Impairment Loss		$ 0	$ 0
Amortization of Intangible Assets		4,000,000	4,000,000	$ 5,000,000
Intangible assets, estimated future amortization expense for 2025		3,000,000
Trade Names [Member]
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)	$ 1,000,000	$ 0	1,000,000
Print Segment [Member]
Number of Reporting Units \| ReportingUnit		4
Advanced Materials And Chemicals [Member]
Number of Reporting Units \| ReportingUnit		2
Goodwill, Impairment Loss		$ 0	$ 0

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 amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is 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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Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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