Description Of Business And Significant Accounting Policies (Reconciliations Of The Numerators And Denominators Of Our Basic And Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Earnings Per Share [Abstract]
Net income from continuing operations	$ 859	$ 1,279	$ 1,152	$ 954	$ 2,256	$ 1,237	$ 1,037	$ 436	$ 4,244	$ 4,966	$ 1,911
Net (loss) from discontinued operations	(4,105)	(60)	(65)	(81)	(93)	(51)	(60)	(82)	(4,311)	(286)	(3,656)
Weighted average shares - basic									60,778,356	60,701,660	60,415,859
Dilution effect of share-based compensation, treasury method									$ 376,275	$ 387,323	$ 241,133
Weighted average shares - dilutive									61,154,631	61,088,983	60,656,992
Continuing Operations									$ 0.07	$ 0.08	$ 0.03
Discontinued Operations									$ (0.07)	$ 0.00	$ (0.06)