Stockholders' Equity (Rollforward Of Common Stock Table) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Class of Stock [Line Items]
Purchased through share repurchase program (Treasury)		278,655	493
Balance (Outstanding Shares), Ending	10,149,398	10,073,403
Common Stock [Member]
Class of Stock [Line Items]
Balance (Treasury Shares), Beginning	1,042,376	814,249	927,423
Balance (Outstanding Shares), Beginning	10,073,403	10,277,138	10,163,964
Issued for stock-based compensation plans (Treasury)	(75,995)	(50,528)	(113,174)
Issued for stock-based compensation plans (Outstanding)	75,995	74,920	113,174
Purchased through share repurchase program (Treasury)		278,655
Purchased through share repurchase program (Outstanding)		(278,655)
Balance (Treasury Shares), Ending	966,381	1,042,376	814,249
Balance (Outstanding Shares), Ending	10,149,398	10,073,403	10,277,138