Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Stock-Based Compensation [Abstract]

Information regarding stock option plan

Information regarding our stock-based compensation plan is as follows as of and for the nine months ended September 30:

	2018						2017
				Weighted-						Weighted-
		Weighted-		Average	Aggregate			Weighted-		Average	Aggregate
		Average		Remaining	Intrinsic			Average		Remaining	Intrinsic
	Number	Exercise		Contractual	Value		Number	Exercise		Contractual	Value
	of Shares	Price		Term (in years)	(in thousands)		of Shares	Price		Term (in years)	(in thousands)
Outstanding at beginning of period	434,025	$	5.87				339,500	$	5.31
Granted	6,500		7.41				20,000		7.10
Exercised	(24,877)		3.98				(5,025)		3.37
Forfeited	(2,600)		5.78				(16,000)		4.59
Outstanding at end of period	413,048	$	6.01	5.8	$	1,565	338,475	$	5.48	7.2	$	526
Exercisable at end of period	229,687	$	5.26	5.7	$	1,043	173,702	$	4.78	6.5	$	398

Stock options valuation assumptions

The followings weighted average assumptions were used to value options granted for the nine months ended September 30, 2018:

	2018			2017
Expected life		5.5 years			5.5 years
Risk-free interest rate		2.67	%		1.76	%
Expected volatility		32.20	%		36.02	%
Expected dividend yield		—			—
Weighted average per share fair value of options granted	$	2.57		$	2.56