Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2023	Sep. 30, 2022
Statement of Financial Position [Abstract]
Allowance for uncollectable accounts	$ 0	$ 0
Common stock, par value	$ 0.01666	$ 0.01666
Common stock, shares authorized	54,000,500	54,000,500
Common stock, shares issued	36,121,723	35,776,752
Common stock, shares outstanding	36,121,723	35,776,752
Treasury stock, shares	131,477	377,232