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Note 19 - Subsequent Events (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 5 Months Ended 9 Months Ended
Oct. 17, 2025
Oct. 02, 2025
Oct. 01, 2025
Sep. 30, 2025
Nov. 12, 2025
Sep. 30, 2025
Jul. 29, 2024
Sep. 30, 2025
Sep. 30, 2024
Proceeds from Issuance of Common Stock               $ 4,751 $ 0
Anson Warrants [Member]                  
Proceeds from Warrant Exercises       $ 3,090          
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)       1,870,960   1,870,960   1,870,960  
ATM Offering [Member]                  
Stock Issued During Period, Shares, New Issues (in shares)           1,350,788 385,515 1,749,866  
Payments of Stock Issuance Costs           $ 100   $ 100  
Subsequent Event [Member] | Anson Warrants [Member]                  
Proceeds from Warrant Exercises   $ 3,090 $ 3,090            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)     1,870,960            
Subsequent Event [Member] | ATM Offering [Member]                  
Stock Issued During Period, Shares, New Issues (in shares)         415,097        
Proceeds from Issuance of Common Stock         $ 1,400        
Payments of Stock Issuance Costs         $ 30        
Subsequent Event [Member] | Cohen LLC [Member]                  
Payments to Acquire Investments $ 440