Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Apr. 30, 2022	Jan. 31, 2022
Allowance for doubtful accounts	$ 461	$ 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)	8,154	8,152
Common stock, outstanding (in shares)	8,154	8,152
Treasury stock (in shares)	234	234

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

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