v3.26.1
Balance Sheets (Parenthetical) - USD ($)
Mar. 31, 2026
Mar. 31, 2025
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts $ 41,889 $ 38,027
Preferred stock, no par value $ 0 $ 0
Preferred stock, shares authorized 20,000,000 20,000,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, no par value $ 0 $ 0
Common stock, shares authorized 12,000,000 12,000,000
Common stock, shares issued 9,781,828 10,182,853
Common stock, shares outstanding 9,707,960 10,182,853
Treasury stock, shares 73,868 0