Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table summarizes the calculation of basic and diluted net income per share for the years ended December 31, 2021, 2020 and 2019 (in thousands, except share and per share data):

	2021		2020		2019
Basic:
Net income	$	47,215	$	18,825	$	3,482
Weighted average common shares outstanding, basic	29,774,172		28,616,401		27,886,278
Basic net income per share	$	1.59	$	0.66	$	0.12
Diluted:
Net income	$	47,215	$	18,825	$	3,482
Weighted average common shares outstanding, basic	29,774,172		28,616,401		27,886,278
Dilutive effect of:
Stock options	587,168		383,607		167,208
Unvested restricted stock units	1,003,322		1,035,253		763,491
Unvested performance stock units	141,418		—		—
Diluted weighted average common shares outstanding	31,506,080		30,035,261		28,816,977
Diluted net income per share	$	1.50	$	0.63	$	0.12

Schedule of Securities Excluded from Calculation of Weighted Average Common Shares Outstanding

The following equity instruments have been excluded from the calculation of diluted net income per share because the effect is anti-dilutive for the years ended December 31, 2021, 2020 and 2019:

	2021	2020	2019
Stock options	21,941	437,927	1,626,757
Restricted stock units	105,600	60,674	278,937