Treasury Stock - Additional Information (Details) - USD ($)	3 Months Ended
	Apr. 30, 2024	Apr. 30, 2023	Nov. 23, 2021
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, total cost of shares repurchased	$ 1,086,000	$ 381,000
Surrender of Shares by Employee
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, number of shares repurchased	37,859	0
November 23, 2021 Share repurchase Program
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, number of shares authorized			$ 50,000,000
Stock repurchase program, total cost of shares repurchased	$ 1,100,000
Stock repurchase program, number of shares repurchased	39,000
Stock repurchase program, average per share price of shares repurchased	$ 27.85
Stock repurchase program, remaining authorized repurchase amount			$ 16,800,000
March 25, 2021 and November 23, 2021 Share Repurchase Program
Equity Class Of Treasury Stock [Line Items]
Stock repurchase program, total cost of shares repurchased		$ 400,000
Stock repurchase program, number of shares repurchased		14,000
Stock repurchase program, average per share price of shares repurchased		$ 27.24