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Common Stock Warrants - Common Stock Warrants (Details) - Common Stock Warrants - USD ($)
 3 Months Ended 12 Months Ended
Sep. 30, 2025
Jun. 30, 2025
Common Stock Warrants    
Number of Shares, Outstanding and exercisable (in shares) 5,720  
Number of Shares, Granted (in shares) 286  
Number of Shares, Expired (in shares) (572)  
Number of Shares, Outstanding and exercisable (in shares) 5,434 5,720
Weighted Average Exercise Price per share, Outstanding and exercisable (dollars per share) $ 2.62  
Weighted Average Exercise Price per share, Granted (dollars per share) 1.79  
Weighted Average Exercise Price per share, Expired (dollars per share) 4.65  
Weighted Average Exercise Price per share, Outstanding and exercisable (dollars per share) $ 2.36 $ 2.62
Weighted Average Remaining Contractual life Term (years), Granted 3 years 10 months 13 days  
Weighted Average Remaining Contractual life Term (years), Outstanding and exercisable 1 year 8 months 26 days 1 year 8 months 12 days
Aggregate Intrinsic Value, Outstanding and exercisable (in dollars) $ 4 $ 4
Aggregate Intrinsic Value, Granted (in dollars) 0  
Aggregate Intrinsic Value, Expired (in dollars) $ 0