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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)	Feb. 28, 2023	Aug. 31, 2022
Accounts Receivable, Allowance for Credit Loss, Current	$ 439,000	$ 439,000
Preferred Stock, No Par Value (in dollars per share)	$ 0	$ 0
Preferred Stock, Shares Authorized (in shares)	10,000	10,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.02	$ 0.02
Common Stock, Shares Authorized (in shares)	15,000,000	15,000,000
Common Stock, Shares, Outstanding, Ending Balance (in shares)	9,366,357	9,232,483
Common Stock, Shares, Issued (in shares)	9,366,357	9,232,483

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