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Note 2 - Summary of Significant Accounting Policies (Details Textual)
 3 Months Ended 9 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
shares
Mar. 31, 2024
USD ($)
Revenue from Contract with Customer, Excluding Assessed Tax $ 29,445,000 $ 31,245,000 $ 95,117,000 $ 87,541,000  
Customer Refund Liability, Current $ 100,000 $ 100,000 $ 100,000 $ 100,000  
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | shares 2,251,667 2,266,667 2,251,667 2,266,667  
Restricted Cash, Current $ 30,000   $ 30,000   $ 155,000
Number of Operating Segments     3   3
Goodwill, Impairment Loss     $ 0 $ 0  
Goodwill 23,379,000   23,379,000   $ 23,379,000
Impairment of Intangible Assets (Excluding Goodwill) 3,807,000 $ 115,000 3,983,000 115,000  
Impairment of Intangible Assets, Finite-Lived $ 0 $ 100,000 $ 200,000 $ 100,000  
Intellectual Property [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 15 years   15 years    
Computer Software, Intangible Asset [Member] | Minimum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 1 year   1 year    
Computer Software, Intangible Asset [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 6 years   6 years    
Domain Names, Customer Lists, and Software [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 5 years   5 years    
Patents [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 15 years   15 years    
Patents [Member] | Maximum [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 15 years   15 years    
Noncompete Agreements [Member]          
Finite-Lived Intangible Asset, Useful Life (Year) 3 years   3 years    
Slacker [Member]          
Goodwill $ 12,900,000   $ 12,900,000    
Impairment of Intangible Assets (Excluding Goodwill) $ 3,800,000   $ 3,800,000    
Customer Concentration Risk [Member] | Accounts Receivable [Member]          
Number of Major Customers     1 1  
Customer Concentration Risk [Member] | Accounts Receivable [Member] | One Customer [Member]          
Concentration Risk, Percentage     10.00% 29.00%  
Common Stock Warrants [Member]          
Class of Warrant or Right, Outstanding (in shares) | shares 4,949,399 3,114,001 4,949,399 3,114,001  
Restricted Stock Units (RSUs) [Member]          
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number (in shares) | shares 1,726,237 1,890,635 1,726,237 1,890,635  
Barter Transactions [Member]          
Revenue from Contract with Customer, Excluding Assessed Tax $ 6,000,000 $ 3,100,000 $ 18,000,000 $ 10,700,000