Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2018

Schedule of Information with respect to stock options

The below table presents information with respect to stock options under the Plan and the 2005 Plan:



	No. of Shares (in thousands)		Weighted Average Exercise Price		Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2017	761		$	5.80	$	2,748
Options granted	101		19.36
Options exercised	(168	)	5.19
Forfeited and canceled	(16	)	13.93
Expired	—		—
Outstanding at December 31, 2018	678		$	7.89
Vested and expected to vest at December 31, 2018	674		$	7.71
Total shares exercisable as of December 31, 2018	497		$	5.62
Shares remaining available for grant	583

Schedule of assumptions for fair value of options at the date of the grant

The fair value of options at the date of the grant was estimated using the Black-Scholes model with the following assumptions for the respective period ending December 31:



	2018		2017
Expected option life	3.7 years		3.7 years
Weighted average risk-free interest rate	2.2	%	2.2	%
Weighted average expected volatility	36	%	36	%
Expected dividend yield	0	%	0	%

Schedule of share-based compensation by exercise price range

Stock options outstanding at December 31, 2018 are summarized as follows:



Range of Exercise Prices	Number Outstanding (in thousands)	Weighted Average Remaining Life	Weighted Average Exercise Price

$4.72 - $22.18	678	6.96 years	$	7.89

Schedule of activity with respect to non-vested stock options

Current year activity with respect to the Company’s non-vested restricted stock awards is as follows:



Non-vested restricted stock awards (in thousands)	Shares		Weighted Average grant- date fair value
Balance at January 1, 2018	158		$	6.49
Granted	79		17.08
Vested	(31	)	10.81
Forfeited and canceled	(13	)	10.21
Balance at December 31, 2018	193		$	9.88