Share-Based Compensation (Narrative) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended				3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014 2012 Plan [Member]	May 31, 2012 2012 Plan [Member]	Mar. 31, 2014 2005 Plan [Member]	May 31, 2005 2005 Plan [Member]	Mar. 31, 2014 Expected To Be Recognized During 2014 [Member]	Mar. 31, 2014 Expected To Be Recognized During 2015 [Member]	Mar. 31, 2014 Expected To Be Recognized During 2016 [Member]
Shares available for grants			740,000	1,500,000	20,635	1,500,000
Stock Option Plan, Award Vesting Period			5 years		10 years
Common stock on date granted term period, years			5		10
Combined share-based compensation expense for 2005 Plan and 1997 Plan	$ 1,349	$ 1,580
Unrecognized compensation cost	$ 1,037						$ 670	$ 331	$ 36