Stock Options (Tables)

3 Months Ended

Mar. 31, 2017

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, 2016	800,502	$	19.43
Plus: Options granted	—		—
Less:
Options exercised	59,751		12.40
Options expired	—		—
Options forfeited	9,213		19.28
Options outstanding at March 31, 2017	731,538		20.00	6.03	$	11,263
Options fully vested and exercisable at March 31, 2017	261,936	$	18.73	5.24	$	4,367