CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)	Jan. 31, 2023	Jan. 31, 2022
CONSOLIDATED BALANCE SHEETS
Allowance for doubtful accounts	$ 800	$ 666
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	1,500,000	1,500,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	20,000,000	20,000,000
Common stock, shares issued	8,655,699	8,555,672
Common stock, shares outstanding	7,325,005	7,615,967
Treasury stock, shares	1,330,694	939,705