Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 31, 2021	Jan. 31, 2021
Goodwill [Roll Forward]
Balance at beginning of period	$ 46,823	$ 47,100
Effect of exchange rates	25	(277)
Balance at end of period	$ 46,848	$ 46,823