Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Oct. 31, 2022	Jan. 31, 2022
Allowance for doubtful accounts	$ 502	$ 486
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	50,000	50,000
Common stock, issued (in shares)	8,004	8,152
Common stock, outstanding (in shares)	8,004	8,152
Treasury stock (in shares)	0	234

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

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