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Note 4 - Goodwill and Intangible Assets (Details Textual)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Dec. 31, 2024
USD ($)
$ / shares
Dec. 31, 2023
USD ($)
Dec. 31, 2024
USD ($)
$ / shares
Dec. 31, 2023
USD ($)
Sep. 30, 2023
$ / shares
Number of Reporting Units 1        
Amortization of Intangible Assets $ 125 $ 307 $ 830 $ 523  
Impairment of Intangible Assets, Finite-Lived 0 0 176 0  
Finite-Lived Intangible Assets [Member]          
Amortization of Intangible Assets $ 300 $ 100 $ 1,000 $ 500  
Stock Issued in Exchange for Intangibles [Member]          
Shares Issued, Price Per Share (in dollars per share) | $ / shares $ 8   $ 8   $ 8,000,000
Finder's Fee Adjustment $ 500