Share-Based Compensation (Narrative) (Details) (USD $)	9 Months Ended				9 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 2012 Plan [Member]	May 31, 2012 2012 Plan [Member]	Sep. 30, 2013 2005 Plan [Member]	May 31, 2005 2005 Plan [Member]	Sep. 30, 2013 1997 Plan [Member]	Sep. 30, 2013 Expected to be recognized during 2013 [Member]	Sep. 30, 2013 Expected to be recognized during 2014 [Member]	Sep. 30, 2013 Expected To Be Recognized During 2015 [Member]
Shares available for grants			1,140,000	1,500,000	20,635	1,500,000	0
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			5 years		10 years
Common stock on date granted term period, years			5		10		5
Combined share-based compensation expense for 2005 Plan and 1997 Plan	$ 2,086,000	$ 1,924,000
Expenses, stock options		1,923,000
Expenses, restricted stock		1,000
Unrecognized compensation cost	$ 669,000							$ 253,000	$ 375,000	$ 41,000