Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - $ / shares	Aug. 31, 2022	Nov. 30, 2021
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	50,000,000	50,000,000
Common stock, shares issued (in shares)	24,016,612	23,754,096
Common stock, shares outstanding (in shares)	22,236,602	23,754,096
Treasury stock, shares (in shares)	1,779,958	0

Face amount or stated value per share of common stock.

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