The table below presents for the periods indicated a reconciliation of the numerators and denominators we used to compute basic and diluted net income per share for our Class A common stock and our Class B common stock:


	Three Months Ended September 30,
	2018						2017
	Class A			Class B			Class A		Class B
	(in thousands, except per share data)
Basic income per share:
Numerator:
Allocation of net income	$	1,006		$	200		$	5,787	$	1,322

Denominator:
Weighted-average shares outstanding		22,717			5,577			21,756		5,577

Basic income per share	$	0.04		$	0.04		$	0.27	$	0.24

Diluted income per share:
Numerator:
Allocation of net income	$	1,006		$	200		$	5,787	$	1,322

Denominator:
Number of shares used in basic computation		22,717			5,577			21,756		5,577
Weighted-average shares effect of dilutive securities:
Director and employee stock options		178			—			461		—

Number of shares used in diluted computation		22,895			5,577			22,217		5,577

Diluted income per share	$	0.04		$	0.04		$	0.26	$	0.24


	Nine Months Ended September 30,
	2018						2017
	Class A			Class B			Class A		Class B
	(in thousands, except per share data)
Basic (loss) earnings per share:
Numerator:
Allocation of net (loss) income	$	(14,472	)	$	(3,290	)	$	8,066	$	1,829

Denominator:
Weighted-average shares outstanding		22,673			5,577			21,669		5,577

Basic (loss) earnings per share	$	(0.64	)	$	(0.59	)	$	0.37	$	0.33

Diluted (loss) earnings per share:
Numerator:
Allocation of net (loss) income	$	(14,472	)	$	(3,290	)	$	8,066	$	1,829

Denominator:
Number of shares used in basic computation		22,673			5,577			21,669		5,577
Weighted-average shares effect of dilutive securities:
Director and employee stock options		—			—			778		—

Number of shares used in diluted computation		22,673			5,577			22,447		5,577

Diluted (loss) earnings per share	$	(0.64	)	$	(0.59	)	$	0.36	$	0.33