Stock Compensation (Tables)

12 Months Ended

Dec. 31, 2020

Stock Compensation [Abstract]

Schedule Of Shares Available For Grant

	Authorized	Available for Grant
Plan	Shares	2020	2019
1996 Discounted Employee Stock Purchase Plan, as amended	1,900,000	150,000	234,000
2009 Equity and Cash Incentive Plan	7,570,000	52,000	2,100,000
2020 Equity and Cash Incentive Plan	4,105,000	4,094,000	--
Total	13,575,000	4,296,000	2,334,000

Schedule Of Stock Grant Activity For RSAs

		Weighted
		Average
		Grant Date
RSAs	Shares	Fair Value
Unvested at December 31, 2017	383,000	$	12.81
Granted	128,000		23.83
Vested	(136,000)		12.96
Forfeited	(49,000)		12.07
Unvested at December 31, 2018	326,000		17.19
Granted	93,000		29.77
Vested	(149,000)		14.45
Forfeited	(27,000)		20.53
Unvested at December 31, 2019	243,000		23.30
Granted	123,000		24.70
Vested	(108,000)		20.66
Forfeited	--		-
Unvested at December 31, 2020	258,000		25.08

Schedule Of Stock Grant Activity For RSUs

		Weighted
		Average
		Remaining		Aggregate
		Contractual		Intrinsic
RSUs	Shares	Term in years		Value
Unvested at December 31, 2017	286,000		1.26	$	5,477,000
Granted	115,000
Vested	(99,000)
Forfeited	(51,000)
Unvested at December 31, 2018	251,000		1.05		7,123,000
Granted	103,000
Vested	(101,000)
Forfeited	(27,000)
Unvested at December 31, 2019	226,000		0.93		6,131,000
Granted	141,000
Vested	(118,000)
Forfeited	(37,000)
Unvested at December 31, 2020	212,000		1.02		5,015,000
Vested and expected to vest	212,000		1.02	$	5,015,000

Schedule Of Stock Grant Activity For PSUs

		Weighted
		Average
		Remaining		Aggregate
		Contractual		Intrinsic
PSUs	Shares	Term in years		Value
Unvested at December 31, 2017	169,000		0.71	$	3,236,000
Granted	104,000
Vested	(109,000)
Forfeited	(17,000)
Unvested at December 31, 2018	147,000		0.72		4,179,000
Granted	322,000
Vested	(87,000)
Forfeited	(35,000)
Unvested at December 31, 2019	347,000		2.33		9,400,000
Granted	70,000
Vested	(55,000)
Forfeited	(31,000)
Unvested at December 31, 2020	331,000		1.64		7,805,000
Vested and expected to vest	331,000		1.64	$	7,805,000

Summary Of Stock Option Activity

				Weighted
				Average
		Weighted		Remaining		Aggregate
		Average		Contractual		Intrinsic
	Shares	Exercise Price		Term in years		Value
Outstanding at December 31, 2017	1,741,000		10.19		3.64		15,598,000
Granted	219,000		21.55
Exercised	(578,000)		7.59
Forfeited	(49,000)		14.10
Outstanding at December 31, 2018	1,333,000		13.04		3.93		20,439,000
Granted	169,000		29.62
Exercised	(334,000)		9.87
Forfeited	(39,000)		22.64
Outstanding at December 31, 2019	1,129,000		16.14		3.67		12,763,000
Granted	212,000		26.24
Exercised	(88,000)		10.49
Forfeited	(12,000)		27.36
Outstanding at December 31, 2020	1,241,000		18.16		3.38		8,215,000
Vested and expected to vest	1,241,000	$	18.16		3.38	$	8,215,000
Exercisable at December 31, 2020	874,000	$	14.71		2.45	$	8,094,000

Summary Of Other Information Concerning Stock Options

	2020		2019		2018
Weighted-average fair value of options granted	$	8.64	$	11.47	$	8.38
Intrinsic value of options exercised		1,267,000		6,519,000		9,961,000

Schedule Of Weighted-Average Assumptions Used To Determine The Fair Value Of Options

	2020		2019		2018
	Stock	ESPP	Stock	ESPP	Stock	ESPP
	Options	Options	Options	Options	Options	Options
Expected life of options	5.00 Years	0.50 Years	5.00 Years	0.50 Years	5.00 Years	0.50 Years
Expected stock price volatility	0.35	0.52	0.40	0.39	0.40	0.34
Risk-free interest rate	1.41%	1.00%	2.54%	2.35%	2.64%	1.73%

Summary Of Total Stock Compensation Expenses

	2020		2019		2018
RSA, PSA, RSU, and PSU expense	$	5,288	$	7,451	$	5,076
Stock option and ESPP option expense		2,216		1,960		1,732
Total stock compensation expense	$	7,504	$	9,411	$	6,808