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Note 7 - Related Party Transactions (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Common Stock, Shares, Outstanding (in shares) 24,846,839   24,846,839   23,608,049
Accounts Payable $ 963   $ 963   $ 1,529
LiveOne [Member]          
Related Party Transaction, Amounts of Transaction     $ 17,900    
Class of Warrant or Right, Outstanding (in shares) 1,100,000   1,100,000    
Common Stock, Shares, Outstanding (in shares) 1,800,000   1,800,000    
Related Party Tax Expense Effect of Change in Allocation Methodology $ 300 $ 300 $ 700 $ 600  
Accounts Payable 800   800   300
Accounts Receivable, after Allowance for Credit Loss $ 300   300   $ 100
Affiliate of the Director [Member] | Product Agreement Costs [Member]          
Related Party Transaction, Amounts of Transaction     $ 0 $ 100