Shareholders' Equity (Schedule of Restricted Stock And Cash Entitlements Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stockholders' Equity Note [Abstract]
Restricted Stock Expense	$ 1,407	$ 963	$ 627
Cash Entitlement Expense	570	580	393
Tax Effect	(782)	(615)	(413)
Net of Tax	$ 1,195	$ 928	$ 607