Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Share-based Compensation [Abstract]

Schedule of Information with respect to stock options

	No. of Shares  (in thousands)		Weighted Average Exercise Price		Aggregate  Intrinsic Value (in thousands)
Outstanding at December 31, 2016	949		$	5.22	$	264
Options granted	149		8.82
Options exercised	(271	)	9.06
Forfeited and canceled	(31	)	5.64
Expired	(35	)	5.17
Outstanding at December 31, 2017	761		$	5.80	$	2,748
Vested and expected to vest at December 31, 2017	272		$	7.30	$	558
Total shares exercisable as of December 31, 2017	41		$	5.46	$	159
Shares remaining available for grant	687

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:

	2017		2016
Expected option life	3.7 years		5.7 years
Weighted average risk-free interest rate	2.2	%	1.3	%
Weighted average expected volatility	36	%	33	%
Expected dividend yield	0	%	0	%

Schedule of share-based compensation by exercise price range

Stock options outstanding at 2017 are summarized as follows:

Range of  Exercise Prices	Number Outstanding (in thousands)	Weighted Average  Remaining Life	Weighted Average Exercise Price
$7.15 - $11.01	761	7.41 years	$	5.80

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, 2017	163		$	5.22
Granted	92		8.61
Vested	(75	)	8.42
Forfeited and canceled	(22	)	8.34
Balance at December 31, 2017	158		$	6.49