Stock Options (Tables)

9 Months Ended

Sep. 30, 2019

Stock Options

Summary of option activity under stock option plans

				Weighted
		Weighted		average
		average		remaining	Aggregate
	Number of	exercise		contractual	intrinsic
	options	price		term (years)	value ($)
					(in Thousands)
Options outstanding at December 31, 2018	788,977	$	25.91
Plus: Options granted	16,500		35.34
Less:
Options exercised	87,663		17.30
Options expired	—		—
Options forfeited	34,576		26.95
Options outstanding at September 30, 2019	683,238		27.19	5.86	$	7,809
Options fully vested and exercisable at September 30, 2019	322,772	$	22.08	4.62	$	5,339