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Discontinued Operations and Assets Held for Sale - Revenue into Primary Product Groups and Major Regions (Details) - Product business [Member] - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue [Line Items]
Revenue, discontinued operations	$ 1,262	$ 2,504	$ 5,491	$ 8,430
North and South America [Member]
Revenue [Line Items]
Revenue, discontinued operations	981	932	3,271	3,236
Asia Pacific (includes Middle East, India and Australia)
Revenue [Line Items]
Revenue, discontinued operations	15	1,358	1,433	4,200
Europe and Africa [Member]
Revenue [Line Items]
Revenue, discontinued operations	266	214	787	994
Audio conferencing [Member]
Revenue [Line Items]
Revenue, discontinued operations	259	929	1,838	3,357
Microphones [Member]
Revenue [Line Items]
Revenue, discontinued operations	798	1,172	2,885	3,786
Video products [Member]
Revenue [Line Items]
Revenue, discontinued operations	$ 205	$ 403	$ 768	$ 1,287

X

- Definition

Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 7
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-7

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 205
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483499/205-20-50-5B

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- Definition

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+ References

No definition available.

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