Convertible Redeemable Preferred Stock and Stockholders' Equity (Tables)

1 Months Ended

3 Months Ended

Jan. 31, 2015

Apr. 30, 2015

Convertible Redeemable Preferred Stock and Stockholders' Equity

Stock option plan activity

	Shares			Weighted Average Exercise Price		Remaining Contractual Term		Aggregate Intrinsic Value
								(in thousands)
Outstanding at January 1, 2014		1,150,000		$	0.06
Granted		1,456,000		$	0.40
Exercised		—			—
Cancelled		—			—
Outstanding at December 31, 2013		2,606,000		$	0.25
Granted		891,000		$	1.85
Exercised		(727,643	)	$	0.14
Cancelled		(160,000	)	$	0.37
Outstanding at December 31, 2014		2,609,357		$	0.82		8.52	$	5,686
Granted		130,000		$	2.75
Exercised		(40,105	)	$	0.95
Cancelled		(10,000	)	$	1.85
Outstanding at January 31, 2015		2,689,252		$	0.91		8.58	$	5,625
Vested and exercisable		1,019,299		$	0.43		7.88	$	2,619
Vested and expected to vest		2,561,421		$	0.88		8.55	$	5,420

	Available for Grant		Shares		Weighted Average Exercise Price		Remaining Contractual Term	Aggregate Intrinsic Value
								(in thousands)
Outstanding at January 31, 2015	1,043,000		2,689,252		$	0.91	8.58	$	5,625
Granted	(365,000	)	365,000		$	3.00
Exercised	—		(46,916	)	$	0.24
Cancelled	254,375		(254,375	)	$	1.47
Outstanding at April 30, 2015	932,375		2,752,961		$	1.14	7.41	$	5,107
Vested and exercisable			1,109,670		$	0.51	4.85	$	2,768
Vested and expected to vest			2,629,418		$	1.11	7.32	$	4,957

Schedule of significant ranges of outstanding and exercisable options

        The following table summarizes significant ranges of outstanding and exercisable options as of January 31, 2015 (in thousands, except contractual life and exercise price):

	Options Outstanding						Options Vested and Exercisable
Range of Exercise Price	Number Outstanding		Weighted Average Remaining Contractual Life (in Years)		Weighted Average Exercise Price		Number Vested and Exercisable		Weighted Average Exercise Price
$0.05 - $0.35		1,548,252		7.83	$	0.21		829,925	$	0.17
$1.00		130,000		8.87	$	1.00		64,374	$	1.00
$1.85		881,000		9.66	$	1.85		125,000	$	1.85
$2.75		130,000		9.95	$	2.75		—		—
		2,689,252		8.58	$	0.91		1,019,299	$	0.43

The following table summarizes significant ranges of outstanding and exercisable options as of April 30, 2015:

	Options Outstanding				Options Vested and Exercisable
Range of Exercise Price	Number Outstanding	Weighted Average Remaining Contractual Life (in Years)	Weighted Average Exercise Price		Number Vested and Exercisable	Weighted Average Exercise Price
$0.05 - $0.25	819,419	3.37	$	0.13	606,293	$	0.09
$0.26 - $1.00	692,542	8.31	$	0.47	320,462	$	0.49
$1.01 - $3.00	1,241,000	9.59	$	2.19	182,915	$	1.90
	2,752,961	7.41	$	1.14	1,109,670	$	0.51