BALANCE SHEETS (Parenthetical) - USD ($)	Jun. 30, 2022	Jun. 30, 2021
BALANCE SHEETS
Allowance doubtful accounts	$ 15,600	$ 15,600
Shareholders' equity:
Common stock,par value	$ 0.05	$ 0.05
Common stock, authorized shares	20,000,000	15,000,000
Common stock, issued shares	7,023,401	6,477,945
Common stock, outstanding shares	7,003,599	6,458,143
Stock held in treasury, shares	19,802	19,802

Amount of allowance for credit loss on accounts receivable, classified as current.

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