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Business Description, Basis of Presentation and Significant Accounting Policies - Revenue by Product Group (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue
Revenue	$ 11,386	$ 18,704
North and South America
Revenue
Revenue	4,178	9,047
Asia (including Middle East) and Australia
Revenue
Revenue	5,959	7,338
Europe and Africa
Revenue
Revenue	1,249	2,319
Audio Conferencing
Revenue
Revenue	4,287	8,366
Microphones
Revenue
Revenue	5,195	7,749
Video products
Revenue
Revenue	$ 1,904	$ 2,589

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