Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Schedule of Stock-Based Compensation Expense Allocation

Total stock-based compensation expense was recorded to cost of revenues and operating expenses based upon the functional responsibilities of the individuals holding the respective awards as follows (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Cost of revenues	$	31	$	32	$	59	$	58
Sales and marketing		12		17		23		31
Research and development		71		109		28		(37	)
General and administrative		390		199		735		423
Total	$	504	$	357	$	845	$	475

Employees [Member]

Assumptions Used to Value Options Granted

The weighted-average grant date fair values of options granted to employees during the six months ended June 30, 2017 and 2016 were $2.43 and $4.81, respectively, using the following assumptions

	Six Months Ended June 30,
	2017		2016
Risk free interest rate	1.45% - 1.59%		1.14%
Expected term	4.5 - 4.75 years		4.75 years
Dividend yield		—		—
Expected volatility	53.15% - 55.20%		79.23% - 79.29%