CONSOLIDATED BALANCE SHEETS (Unaudited) (PARENTHETICAL) - $ / shares	Jul. 31, 2022	Jan. 31, 2022	Jul. 31, 2021
Preferred Stock, par value	$ 0.01	$ 0.01	$ 0.01
Preferred Stock, shares authorized	5,000,000	5,000,000	5,000,000
Preferred Stock, shares issued	0	0	0
Treasury Stock, shares	12,881,965	12,266,978	11,881,311
Common Stock Class Undefined
Common Stock, par value	$ 0.01	$ 0.01	$ 0.01
Common Stock, shares authorized	100,000,000	100,000,000	100,000,000
Common Stock, shares issued	28,771,219	28,633,025	28,414,699
Common Stock, shares outstanding	28,771,219	28,633,025	28,414,699
Class A Common Stock
Common Stock, par value	$ 0.01	$ 0.01	$ 0.01
Common Stock, shares authorized	30,000,000	30,000,000	30,000,000
Common Stock, shares issued	6,524,805	6,524,805	6,536,960
Common Stock, shares outstanding	6,524,805	6,524,805	6,536,960