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CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Oct. 31, 2018	Jan. 31, 2018
Current assets:
Allowance for doubtful accounts	$ 1,434	$ 1,238
Stockholders’ equity:
Treasury stock (in shares)	99,371	99,371
Average repurchase price of treasury stock shares (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)	35,189,254	13,303,028
Common stock outstanding (in shares)	35,189,254	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	100,000,000
Common stock issued (in shares)	18,406,366	37,371,914
Common stock outstanding (in shares)	18,306,995	37,272,543

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