Stock-Based Compensation Plan (Tables)

12 Months Ended

Dec. 31, 2020

Stock-Based Compensation Plan [Abstract]

Summary Of Stock Option Activities

				Weighted
				Average
		Weighted		Remaining		Aggregate
		Average		Contractual		Intrinsic
	Number of	Exercise		Term		Value
	Shares	Price		(in years)		(in thousands)
Options outstanding, December 31, 2017	859,560	$	16.44
Options exercised	(9,393)	$	14.76
Options outstanding, December 31, 2018	850,167	$	16.46
Options exercised	(185,221)	$	14.06
Options forfeited	(3,000)	$	12.88
Options expired	(15,000)	$	25.53
Options outstanding, December 31, 2019	646,946	$	16.96
Options exercised	(253,646)	$	15.68
Options forfeited	(11,814)	$	15.64
Options expired	(80,310)	$	23.31
Options outstanding, December 31, 2020	301,176	$	16.39		3.1	$	4,473
Options exercisable at December 31, 2020	297,840	$	16.40		3.1	$	4,421
Expected to vest after December 31, 2020	3,336	$	15.89		6.1	$	52

Summary Of Restricted Stock and Performance Stock Activity

		Weighted
		Average
	Number of	Grant Date
	Shares	Fair Value
Outstanding at December 31, 2017	78,542	$	14.92
Granted	156,165	$	22.48
Vested	(29,977)	$	16.52
Outstanding at December 31, 2018	204,730	$	20.45
Granted	166,939	$	25.37
Vested	(81,259)	$	20.89
Forfeited	(8,674)	$	22.42
Outstanding at December 31, 2019	281,736	$	23.18
Granted	143,957	$	25.60
Vested	(124,135)	$	22.95
Forfeited	(115,087)	$	25.28
Outstanding at December 31, 2020	186,471	$	23.91