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Note 5 - Goodwill and Intangible Assets (Details Textual)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 31, 2025
USD ($)
$ / shares
Mar. 31, 2024
USD ($)
Sep. 30, 2023
$ / shares
Number of Reporting Units     3 3  
Goodwill, Impairment Loss     $ 1,667 $ 0  
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)     3,900    
Amortization of Intangible Assets     1,947 1,815  
Impairment of Intangible Assets, Finite-Lived $ 0 $ 100 $ 8,100 100  
Goodwill, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration]     Asset Impairment Charges    
Cost Capitalized to Content Creator Relationship Intangibles [Member]          
Shares Issued, Price Per Share (in dollars per share) | $ / shares     $ 8   $ 8
Capitalized Contract Cost, Gross     $ 3,100 2,600  
Stock Issued During Period, Value, Capitalized Payments     2,600    
Capitalized Contract Cost, Adjustment     500    
Slacker Segment [Member]          
Impairment of Intangible Assets, Finite-Lived     $ 3,300 100  
Patents [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     15 years    
Patents [Member] | Slacker Segment [Member]          
Impairment of Intangible Assets, Finite-Lived     $ 2,200    
Patents [Member] | Minimum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     3 years    
Patents [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     15 years    
Content Creator Relationships [Member]          
Impairment of Intangible Assets, Finite-Lived     $ 200 $ 0  
Content Creator Relationships [Member] | Minimum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     1 year    
Content Creator Relationships [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     2 years    
Domain Names [Member] | Minimum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     2 years    
Domain Names [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     5 years    
Trade Names [Member] | Minimum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     7 years    
Trade Names [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     10 years    
Customer Lists [Member] | Minimum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     3 years    
Customer Lists [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year)     4 years    
Customer Relationships [Member] | Media Operations [Member]          
Impairment of Intangible Assets, Finite-Lived     $ 900