Fair Value Measurements (Tables)

12 Months Ended

Jan. 31, 2018

Fair Value of Financial Assets and Liabilities

The following table presents the fair value of the Company’s financial assets and liabilities using the above input categories as of January 31, 2017 and 2018 (in thousands):

	As of January 31, 2017
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	31,468	$	—	$	—	$	31,468
Total cash equivalents		31,468		—		—		31,468
Total assets measured at fair value	$	31,468	$	—	$	—	$	31,468
Convertible preferred warrants:
Series E Convertible Preferred Stock warrants⁽¹⁾	$	—	$	—	$	568	$	568
Total convertible preferred stock warrants		—		—		568		568
Total liabilities measured at fair value	$	—	$	—	$	568	$	568

	As of January 31, 2018
	Level 1		Level 2		Level 3		Total
Cash equivalents:
Money market funds	$	11,735	$	—	$	—	$	11,735
Total cash equivalents		11,735		—		—		11,735
Total assets measured at fair value	$	11,735	$	—	$	—	$	11,735

⁽¹⁾

Series E Convertible Preferred Stock Convertible Preferred Stock warrant liability is included in Other long-term liabilities in the accompanying consolidated balance sheets. Immediately prior to the closing of the IPO, all convertible preferred stock warrants automatically converted into common stock warrants.

Summary of Changes in Fair Value of Convertible Preferred Stock Warrant Liability

A summary of the changes in the fair value of the Company’s convertible preferred stock warrant liability is as follows (in thousands):

	As of January 31,
	2017		2018
Convertible preferred stock warrant liability—beginning balance	$	532	$	568
Change in fair value⁽¹⁾		36		(470	)
Issuance of convertible preferred stock warrants		—		277
Reclassification of convertible preferred stock warrant liability to additional paid in capital		—		(375	)
Convertible preferred stock warrant liability—ending balance	$	568	$	—

⁽¹⁾	Recorded in the consolidated statements of operations within Other income, net.