Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Activity under stock option plans

	Three Months Ended March 31,
	2018
	Shares	Weighted Average Exercise Price
Balance, Beginning of Period	4,500	$22.91
Options Exercised	350	22.91
Balance, End of Period	4,150	$22.91
Options Exercisable	4,150
Options Available For Grant	50,000

Options outstanding