Share-based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Share-Based Compensation Expense

The components of share-based compensation expense were as follows:

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
	(in thousands)				(in thousands)
Stock option awards	$	331	$	723	$	1,111	$	1,347
Restricted stock units		206		164		683		498
Total share-based compensation	$	537	$	887	$	1,794	$	1,845

Schedule of Stock-based Compensation

Stock-based compensation is included in our statements of operations as follows:

	Three months ended September 30,				Nine months ended September 30,
	2018		2017		2018		2017
	(in thousands)				(in thousands)
Cost of sales	$	61	$	46	$	209	$	141
Sales and marketing		155		78		429		309
General and administrative		266		718		967		1,261
Research and development		55		45		189		134
Total stock-based compensation	$	537	$	887	$	1,794	$	1,845