Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Jul. 31, 2024	Jan. 31, 2024
Allowance for doubtful accounts	$ 713	$ 699
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)	7,978	8,017
Common stock, outstanding (in shares)	7,978	8,017
Treasury stock (in shares)	112	112