CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Current assets:
Allowance for doubtful accounts	$ 2,515	$ 1,539
Stockholders’ equity:
Treasury stock (in shares)	99,371	99,371
Average treasury stock repurchase price (in dollars per share)	$ 13.27	$ 13.27
Class A Common Stock
Stockholders’ equity:
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	1,000,000,000	1,000,000,000
Common stock issued (in shares)	48,512,090	13,303,028
Common stock outstanding (in shares)	48,512,090	13,303,028
Class B Common Stock
Stockholders’ equity:
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock authorized (in shares)	100,000,000	113,000,000
Common stock issued (in shares)	8,969,824	37,371,914
Common stock outstanding (in shares)	8,870,453	37,272,543