Net Income per Share Attributable to Common Stockholders (Tables)

3 Months Ended

Apr. 30, 2014

Earnings Per Share [Abstract]

Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock

The numerators and denominators of the basic and diluted EPS computations for our common stock are calculated as follows (in thousands, except per share data):

	Three Months Ended April 30,
	2014						2013
	Class A			Class B			Class A		Class B
Basic
Numerator
Net income	$	1,258		$	5,963		$	—	$	4,845
Noncumulative dividends on convertible preferred stock		—			—			—		(140	)
Undistributed earnings allocated to participating securities		(16	)		(77	)		—		(3,779	)
Net income attributable to common stockholders, basic	$	1,242		$	5,886		$	—	$	926
Denominator
Weighted average shares used in computing net income per share attributable to common stockholders, basic		21,589			102,313			—		21,610
Net income per share attributable to common stockholders, basic	$	0.06		$	0.06		$	—	$	0.04
Diluted
Numerator
Net income attributable to common stockholders, basic	$	1,242		$	5,886		$	—	$	926
Reallocation as a result of conversion of Class B to Class A common stock:
Net income attributable to common stockholders, basic		5,886			—			—		—
Reallocation of net income to Class B common stock		—			165			—		—
Net income attributable to common stockholders, diluted	$	7,128		$	6,051		$	—	$	926
Denominator
Number of shares used for basic EPS computation		21,589			102,313			—		21,610
Conversion of Class B to Class A common stock		102,313			—			—		—
Effect of potentially dilutive securities		18,947			18,947			—		11,378
Weighted average shares used in computing net income per share attributable to common stockholders, diluted		142,849			121,260			—		32,988
Net income per share attributable to common stockholders, diluted	$	0.05		$	0.05		$	—	$	0.03