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Condensed Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Dec. 31, 2025	Jun. 30, 2025
Allowances for credit losses	$ 45,000	$ 45,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	13,000,000	13,000,000
Common stock, shares issues (in shares)	8,279,631	8,349,176
Common stock, shares outstanding (in shares)	8,279,631	8,349,176

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

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Face amount or stated value per share of common stock.

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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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