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Note 1 - Nature of Operation (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
Sep. 24, 2023
Jun. 29, 2023
Mar. 31, 2024
Mar. 31, 2023
Conversion of Stock [Line Items]        
Proceeds from Issuance of Private Placement $ 7,500      
Common shares, issued 1,951,371   9,399,404 7,435,533
Purchase of pre funded warrants 2,106,853      
Purchase Price per common share $ 1.8481      
purchase of common shares 2,536,391      
Reverse Stock Split [Member]        
Conversion of Stock [Line Items]        
Reverse stock split   1-for-6