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Goodwill And Other Intangible Assets (Reconciliation Of The Beginning And Ending Balance Of Goodwill) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Finite-Lived Intangible Assets, Gross	$ 43,669	$ 43,585
Finite-Lived Intangible Assets, Accumulated Amortization	(31,979)	(29,433)
Finite-Lived Intangible Assets, Net	11,690	14,152
Reclassification from customer relationship intangibles to goodwill	(2,900)
Customer-Related Intangible Assets
Goodwill [Roll Forward]
Finite-Lived Intangible Assets, Gross	26,549	26,526
Finite-Lived Intangible Assets, Accumulated Amortization	(15,467)	(13,267)
Finite-Lived Intangible Assets, Net	11,082	13,259
Technology-Based Intangible Assets
Goodwill [Roll Forward]
Finite-Lived Intangible Assets, Gross	3,726	3,721
Finite-Lived Intangible Assets, Accumulated Amortization	(3,672)	(3,603)
Finite-Lived Intangible Assets, Net	54	118
Trade Names [Member]
Goodwill [Roll Forward]
Finite-Lived Intangible Assets, Gross	13,394	13,338
Finite-Lived Intangible Assets, Accumulated Amortization	(12,840)	(12,563)
Finite-Lived Intangible Assets, Net	554	775
Aluminum Extrusions
Goodwill [Roll Forward]
Reclassification from customer relationship intangibles to goodwill	$ (2,900)
Reclassification from customer relationships to goodwill, net amortization		$ (900)

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 928
-SubTopic 340
-Section 50
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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
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-URI https://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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