Stockholders' Equity (Tables)

9 Months Ended

Oct. 31, 2016

Equity [Abstract]

Summary of Stock Option Activity Plans

Summary of option activity under the Company’s 2005 Plan and 2015 Plan for the nine months ended October 31, 2016 is set forth below:

	Options Outstanding
	Number of					Weighted
	Shares			Weighted		Average		Aggregate
	Underlying			Average		Remaining		Intrinsic
	Outstanding			Exercise		Contractual Term		Value
	Options			Price		(Years)		(in thousands)
Balance, January 31, 2016		2,087,584		$	5.59		7.9	$	4,843
Options granted		—			—
Options exercised		(202,355	)		1.35
Options canceled		(89,102	)		12.02
Balance, October 31, 2016		1,796,127		$	5.75		7.3	$	6,413
Vested and exercisable, October 31, 2016		954,691		$	4.39		6.4	$	4,564
Vested and expected to vest, October 31, 2016		1,796,127		$	5.75		7.3	$	6,413

Summary of Restricted Stock Units Activity

A summary of the Company’s RSU activity and related information for the nine months ended October 31, 2016 is as follows:

	Number of Shares			Weighted-Average Grant-Date Fair Value Per Share		Weighted-Average Remaining Contractual Life (Years)		Aggregate Intrinsic Value (in thousands)
Balance as of January 31, 2016		1,056,905		$	9.60		1.43	$	7,176
RSUs granted		1,521,250			7.16
RSUs vested		(549,747	)		9.09
RSUs canceled		(127,175	)		8.07
Balance as of October 31, 2016		1,901,233		$	7.56		1.54	$	16,446