Stock-Based Compensation - Schedule of Stock Options Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020	Jan. 31, 2021
Schedule of stock options activity
Outstanding Option Beginning Balance			1,111,110
Stock options granted	0	0	201,875	0
Exercised			(24,517)
Cancelled			0
Outstanding Option Ending Balance	1,288,468		1,288,468		1,111,110
Exercisable	548,593		548,593		561,110
Expected to vest	663,115		663,115
Weighted Average Exercise Price per Option, Beginning Balance			$ 21.90
Granted, Weighted Average Exercise Price per Option			27.62
Exercised. Weighted Average Exercise Price per Option			25.45
Weighted Average Exercise Price per Option, Ending Balance	$ 22.73		22.73		$ 21.90
Exercisable, Weighted Average Exercise Price per Option	28.29		28.29
Expected to vest, Weighted Average Exercise Price per Option	$ 18.45		18.45
Option Price Per Share, Granted			$ 27.62
Options outstanding, Weighted Average Remaining Contractual Term (years)			7 years		6 years 10 months 24 days
Exercisable, Weighted Average Remaining Contractual Term (years)			3 years 9 months 18 days
Expected to vest, Weighted Average Remaining Contractual Term (years)			9 years 3 months 18 days
Options outstanding, Aggregate Intrinsic Value	$ 10,271		$ 10,271		$ 2,975
Exercisable, Aggregate Intrinsic Value	1,785		1,785
Expected to vest, Aggregate Intrinsic Value	$ 7,702		$ 7,702
Minimum
Schedule of stock options activity
Option Price Per Share, Beginning Balance			$ 12.42
Option Price Per Share, Exercised			23.35
Option Price Per Share, Ending Balance	$ 12.42		12.42		$ 12.42
Maximum
Schedule of stock options activity
Option Price Per Share, Beginning Balance			42.12
Option Price Per Share, Exercised			30.36
Option Price Per Share, Ending Balance	$ 42.12		$ 42.12		$ 42.12