Stock Compensation (Tables)

3 Months Ended

Mar. 31, 2018

Stock Compensation [Abstract]

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

	Three Months Ended				Three Months Ended
	March 31, 2018				March 31, 2017
	Stock Options		ESPP Options		Stock Options		ESPP Options
Expected life of options		5.0 Years		0.5 Years		4.8 Years		0.5 Years
Expected stock price volatility		0.40		0.35		0.40		0.35
Risk-free interest rate		2.64%		1.53%		1.87%		0.62%

Summary Of Total Stock Compensation Expenses

	Three Months Ended
	March 31,
	2018		2017
RSA, PSA, RSU, and PSU expense	$	948	$	1,346
Stock option and ESPP option expense		406		518
Total stock compensation expense	$	1,354	$	1,864