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Note 2 - Summary of Significant Accounting Policies (Details Textual)
3 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 31, 2025
USD ($)
shares
Mar. 31, 2024
USD ($)
shares
Revenue from Contract with Customer, Excluding Assessed Tax     $ 114,405,000 $ 118,440,000
Customer Refund Liability, Current     100,000 100,000
Accrued Royalties     12,900,000 18,400,000
Advertising Expense     $ 100,000 $ 200,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | shares     2,201,667 2,266,667
Number of Operating Segments     3  
Restricted Cash, Current     $ 30,000 $ 155,000
Capitalized Computer Software, Additions     $ 3,300,000 $ 3,400,000
Number of Reporting Units     3 3
Goodwill, Impairment Loss     $ 1,667,000 $ 0
Impairment Of Intangible Asset Indefinite Lived Excluding Goodwill Statement Of Income Or Comprehensive Income Extensible Enumeration Not Disclosed Flag     true true
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)     $ 3,900,000  
Impairment of Intangible Assets, Finite-Lived $ 0 $ 100,000 $ 8,100,000 $ 100,000
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration]     Asset Impairment Charges Asset Impairment Charges
Intellectual Property [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     15 years  
Computer Software, Intangible Asset [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     5 years  
Patents [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     15 years  
Noncompete Agreements [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     3 years  
Trademarks and Trade Names [Member]        
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)     $ 3,900,000 $ 0
Minimum [Member]        
Capitalized Computer Software, Useful Life (Year)     2 years  
Minimum [Member] | Content Creator and Wholesale Relationships [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     1 year  
Minimum [Member] | Patents [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     3 years  
Maximum [Member]        
Capitalized Computer Software, Useful Life (Year)     5 years  
Maximum [Member] | Content Creator and Wholesale Relationships [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     6 years  
Maximum [Member] | Patents [Member]        
Finite-Lived Intangible Asset, Useful Life (Year)     15 years  
Building Improvements [Member]        
Property, Plant and Equipment, Useful Life (Year)     5 years  
Furniture and Fixtures [Member] | Minimum [Member]        
Property, Plant and Equipment, Useful Life (Year)     2 years  
Furniture and Fixtures [Member] | Maximum [Member]        
Property, Plant and Equipment, Useful Life (Year)     5 years  
Computer Equipment [Member] | Minimum [Member]        
Property, Plant and Equipment, Useful Life (Year)     3 years  
Computer Equipment [Member] | Maximum [Member]        
Property, Plant and Equipment, Useful Life (Year)     5 years  
Restricted Stock Units (RSUs) [Member]        
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number (in shares) | shares     493,946 1,846,245
Customer Concentration Risk [Member] | Revenue Benchmark [Member]        
Number of Major Customers     1 1
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member]        
Concentration Risk, Percentage     45.00% 51.00%
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% 42.00%
Barter Transactions [Member]        
Revenue from Contract with Customer, Excluding Assessed Tax     $ 25,000,000 $ 16,700,000
Barter Transactions [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member]        
Number of Major Customers     1 1
Barter Transactions [Member] | Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member]        
Concentration Risk, Percentage     22.00% 14.00%