Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2017

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of inputs to option valuation model for options granted

The following table summarizes the inputs to the option valuation model for the options granted during the years ended December 31, 2017 and 2016:

	2017	2016
Expected volatility	27%	31%
Dividend rate	0%	0%
Expected term (in years)	3.55	3.25 – 3.55
Risk-free rate	2.01%	0.92% – 1.49%

Information about stock options outstanding and exercisable

The following table summarizes information about stock options outstanding and exercisable at December 31, 2017:

	Number of Shares Outstanding			Weighted Average Exercise Price		Weighted Average Grant Date Fair Value		Weighted Average Remaining Term (in years)		Aggregate Intrinsic Value (in thousands)
Option Balances at December 31, 2016		176,344		$	4.90	$	1.31	3.4		$	78
Options Granted		9,541			6.09		1.05
Options Exercised		—			—		—
Options Forfeited		(4,500	)		4.01		0.96
Options Expired		—			—		—
Option Balances at December 31, 2017		181,385		$	4.98	$	1.30		2.4	$	158
Options Exercisable at December 31, 2017		128,692		$	5.04	$	1.41		1.9	$	113