Share-based Compensation

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement [Abstract]

The Company included the following amounts for share-based compensation awards in the unaudited condensed consolidated statements of operations (in thousands):



	Three Months Ended March 31,
	2020		2019
Cost of revenues	$	228	$	123
Research and development	292		175
Sales and marketing	463		214
General and administrative	570		545
Total	$	1,553	$	1,057

Stock Options

The following table summarizes the Company’s stock option activity:



Outstanding — December 31, 2019	9,044,304
Granted	939,750
Exercised	(30,079	)
Canceled	(176,687	)
Outstanding — March 31, 2020	9,777,288
Exercisable — March 31, 2020	3,984,801

At March 31, 2020, total unrecognized compensation expense related to stock options was $11.7 million, which is expected to be recognized over a weighted-average period of 2.87 years.

Restricted Stock Units

The following table summarizes the Company’s restricted stock unit (“RSU”) activity:



Non-vested — December 31, 2019	400,315
Granted	46,156
Vested	(151,467	)
Non-vested — March 31, 2020	295,004

At March 31, 2020, total unrecognized compensation expense related to RSUs was $0.7 million, which is expected to be recognized over a weighted-average period of 1.33 years.