Net income per share (Tables)

6 Months Ended

Jun. 30, 2018

Reconciliation of Numerator and Denominator in Basic and Diluted Net Income (Loss) Per Common Share Computations

The following is a reconciliation of the numerator and denominator in the basic and diluted net income per common share computations (in thousands, except share and per share data):



	Three months ended June 30,				Six months ended June 30,
	2018		2017		2018		2017
Numerator:
Net income	$	1,248	$	3,970	$	1,938	$	6,130

Denominator:
Weighted average common shares outstanding - basic	46,625,915		45,465,723		46,531,264		44,786,305
Diluted common equivalents from stock options	2,595,745		3,751,824		2,658,405		4,461,187
Diluted common equivalents from restricted stock units	153,050		275,147		140,280		266,137
Diluted common equivalents from restricted stock awards	51,217		17,246		34,926		10,818
Weighted average common shares outstanding - diluted	49,425,927		49,509,940		49,364,875		49,524,447

Net income per share:
Basic	$	0.03	$	0.09	$	0.04	$	0.14
Diluted	$	0.03	$	0.08	$	0.04	$	0.12

Anti-dilutive securities excluded from diluted EPS:
Options to purchase common stock	2,219,821		585,103		2,040,389		849,975
Restricted stock units	394,886		—		425,226		14,365
Restricted stock awards	226,650		—		245,118		—
Total	2,841,357		585,103		2,710,733		864,340