Shareholders' Equity (Schedule of Restricted Stock And Cash Entitlements Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stockholders' Equity Note [Abstract]
Restricted Stock Expense	$ 1,287	$ 1,355	$ 1,246
Cash Entitlement Expense	639	718	657
Tax Effect	(499)	(542)	(746)
Net of Tax	$ 1,427	$ 1,531	$ 1,157