Stock Plan (Tables)

12 Months Ended

Dec. 31, 2017

Stock Plan Tables

Average assumptions used to value stock options

The average assumptions used to value each option award granted during the years ended December 31, 2012 and 2011 are as follows:

	Years ended December 31
	2012			2011
Weighted-average grant date fair value	$	3.21		$	2.53
Expected dividend yield		1.91	%		3.12	%
Expected volatility		28.01	%		28.74	%
Risk-free interest rate		1.94	%		2.02	%
Expected term (years)		10.00			10.00
Expected forfeiture		0.00	%		0.00	%

Stock option activity

The following table summarizes stock option activity for year ended December 31, 2017:

	Number of Shares		Weighted Average Exercise Price		Weighted Average Remaining Contractual Terms		Aggregate Intrinsic Value
Outstanding at December 31, 2016		100,000	$	10.96		4.72	$	—
Granted		—		—		—		—
Forfeited or expired		100,000		—		—		—
Exercised		—		—		—		—
Outstanding at December 31, 2017		—		—		—	$	—
Exercisable at December 31, 2017		—		—		—	$	—