Annual report [Section 13 and 15(d), not S-K Item 405]

Related Parties (Details)

v3.26.1
Related Parties (Details) - USD ($)
 3 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2025
Dec. 31, 2024
Related Parties      
Issuance of common stock for the acquisition of intangible assets (in shares)   5,500,000  
Issuance of common stock in connection with the acquisition of intangible assets (in shares)     40,000,000
Interest income   $ 5,000  
Net revenue   $ 39,089,000 $ 2,674,000
EOS Holdings      
Related Parties      
Earnout Percentage Of Net Revenue   3.00%  
Revenue subject to earnout provision   $ 30,000,000  
Earnout expense   800,000  
Accrued expense   800,000 0
Earnout payments   $ 0  
Aggregate share issued   0  
Related Party | EOS Holdings      
Related Parties      
Issuance of common stock for the acquisition of intangible assets (in shares)   40,000,000  
Number of shares retained   3,999,911  
Due to related party   $ 300,000  
Interest income   5,000  
Revenue of related parties owned   800,000 0
Amount due from related parties   0 400,000
Related Party | EOS Holdings | DV Convertible Note      
Related Parties      
Due to related party   $ 3,900,000 $ 10,000,000
Outstanding principal converted $ 3,200,000    
Helge Kristensen | Warrant      
Related Parties      
Ownership percentage   1.00% 1.00%
Hansong Technology | Sales of Modules To Related Party      
Related Parties      
Net revenue   $ 205,000 $ 58,000
Payments for purchases   200,000 38,000
Amount due from related parties   0 24,000
Hansong Technology | Purchase of speaker products from related party      
Related Parties      
Purchase of wireless audio speaker systems from related party   10,000 28,000
Payments for purchases   53,000 200,000
Amount due from related parties   $ 0 $ 43,000