Fourth Quarter Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

The financial information for the three months ended December 31, 2021 and 2020 presented in the following table reflects all normal recurring adjustments that are, in the opinion of management, necessary for a fair statement of the results of the interim periods (in thousands, except per share data):


	For the Quarter Ended
	December 31, 2021		December 31, 2020
Sales	$	209,996	$	168,065
Gross profit	$	113,729	$	90,556
Operating expenses	$	100,991	$	71,894
Operating income	$	12,738	$	18,662
Net income	$	10,808	$	17,000
Basic net income per share	$	0.17	$	0.27
Diluted net income per share	$	0.16	$	0.22

The numerator and denominator of the basic and diluted net income per share computations are calculated as follows for the three months ended December 31, 2021 and 2020:


	For the Quarter Ended
(in thousands)	December 31, 2021		December 31, 2020
Net income	$	10,808	$	17,000
Less: change in fair value of common stock warrants	32		(2,819)
Net income - diluted	$	10,840	$	14,181

Weighted average shares outstanding - basic	63,650		62,249
Dilutive common share equivalents:
Options to purchase common stock	1,877		2,984
Unvested restricted stock units	227		133
Warrants to purchase common stock	170		308
Awards to be granted under the ESPP	3		4
Convertible senior notes (if-converted)	—		—
Weighted average shares outstanding - diluted	65,927		65,678