Stock Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Stock Compensation [Abstract]

Schedule Of Shares Available For Grant

	Authorized	Available for Grant
Plan	Shares	2019	2018
1996 Discounted Employee Stock Purchase Plan, as amended	1,900,000	234,000	295,000
2009 Equity and Cash Incentive Plan	9,000,000	2,100,000	958,000
Total	10,900,000	2,334,000	1,253,000

Schedule Of Stock Grant Activity For RSAs

		Weighted
		Average
		Grant Date
RSAs	Shares	Fair Value
Unvested at December 31, 2016	392,000	$	10.64
Granted	138,000		17.00
Vested	(129,000)		10.84
Forfeited	(18,000)		11.78
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

Schedule Of Stock Grant Activity For PSAs

		Weighted
		Average
		Grant Date
PSAs	Shares	Fair Value
Unvested at December 31, 2016	250,000	$	10.18
Granted	--		--
Vested	(250,000)		10.18
Forfeited	--		--
Unvested at December 31, 2017	--		--
Granted	--		--
Vested	--		--
Forfeited	--		--
Unvested at December 31, 2018	-		--
Granted	--		--
Vested	--		--
Forfeited	--		--
Unvested at December 31, 2019	-		--

Schedule Of Stock Grant Activity For RSUs

		Weighted
		Average
		Remaining		Aggregate
		Contractual		Intrinsic
RSUs	Shares	Term in years		Value
Unvested at December 31, 2016	178,000		1.24	$	3,405,000
Granted	196,000
Vested	(64,000)
Forfeited	(24,000)
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
Vested and expected to vest	226,000		0.93	$	6,131,000

Schedule Of Stock Grant Activity For PSUs

		Weighted
		Average
		Remaining		Aggregate
		Contractual		Intrinsic
PSUs	Shares	Term in years		Value
Unvested at December 31, 2016	188,000		0.77	$	3,603,000
Granted	126,000
Vested	(128,000)
Forfeited	(17,000)
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
Vested and expected to vest	347,000		2.33	$	9,400,000

Summary Of Stock Option Activity

				Weighted
				Average
		Weighted		Remaining		Aggregate
		Average		Contractual		Intrinsic
	Shares	Exercise Price		Term in years		Value
Outstanding at December 31, 2016	1,911,000	$	8.59		3.55	$	20,179,000
Granted	260,000		16.30
Exercised	(394,000)		6.30
Forfeited	(31,000)		12.47
Expired	(5,000)		7.01
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
Expired	--		--
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
Expired	--		--
Outstanding at December 31, 2019	1,129,000		16.14		3.67		12,763,000
Vested and expected to vest	1,129,000	$	16.14		3.67	$	12,763,000
Exercisable at December 31, 2019	782,000	$	12.55		2.89	$	11,371,000

Summary Of Other Information Concerning Stock Options

	2019		2018		2017
Weighted-average fair value of options granted	$	11.47	$	8.38	$	5.97
Intrinsic value of options exercised		6,519,000		9,961,000		4,748,000

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

	2019		2018		2017
	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	4.75 Years	0.50 Years
Expected stock price volatility	0.40	0.39	0.40	0.34	0.40	0.39
Risk-free interest rate	2.54%	2.35%	2.64%	1.73%	1.87%	0.85%

Summary Of Total Stock Compensation Expenses

	2019		2018		2017
RSA, PSA, RSU, and PSU expense	$	7,451	$	5,076	$	5,335
Stock option and ESPP option expense		1,960		1,732		1,978
Total stock compensation expense	$	9,411	$	6,808	$	7,313