Stockholders' Equity (Rollforward Of Common Stock Table) (Details) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Class of Stock [Line Items]
Balance (Outstanding Shares), Beginning	10,242,405
Purchased through share repurchase program (Treasury)	80,512
Balance (Outstanding Shares), Ending	10,221,006	10,242,405
Common Stock [Member]
Class of Stock [Line Items]
Balance (Treasury Shares), Beginning	873,374	927,258	966,381
Balance (Outstanding Shares), Beginning	10,242,405	10,188,521	10,149,398
Issued for stock-based compensation plans (Treasury)	(59,113)	(53,884)	(39,123)
Issued for stock-based compensation plans (Outstanding)	59,113	53,884	39,123
Purchased through share repurchase program (Treasury)	80,512
Purchased through share repurchase program (Outstanding)	(80,512)
Balance (Treasury Shares), Ending	894,773	873,374	927,258
Balance (Outstanding Shares), Ending	10,221,006	10,242,405	10,188,521