Consolidated Balance Sheets (Parentheticals) - $ / shares	Jun. 30, 2026	Sep. 30, 2025
Consolidated Balance Sheets
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	18,659,181	16,748,702
Common stock, shares outstanding (in shares)	18,624,017	16,715,026
Number of unvested shares (in shares)	35,164	33,676
Treasury stock, shares (in shares)	1,502,236	1,396,120