Leases (Details) - Schedule of Components of Lease Expense - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2020	Jul. 31, 2019
Schedule of Components of Lease Expense [Abstract]
Operating lease expense	$ 1,548	$ 1,701	$ 3,234	$ 3,310
Variable lease expense	207	159	338	352
Total lease expense	$ 1,755	$ 1,860	$ 3,572	$ 3,662