Income Per Common Share (Computation Of Basic And Diluted Income (Loss) Per Common Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Income (Loss) Per Common Share [Line Items]
Net income	$ 1,538	$ 2,019	$ 5,863	$ 5,505
Net income allocated to participating securities, basic	(36)	(43)	(133)	(110)
Net income allocated to common shareholders, basic	1,502	1,976	5,730	5,395
Basic weighted-average common shares outstanding	26,810,000	27,523,000	26,951,000	27,431,000
Basic income per common share	$ 0.06	$ 0.07	$ 0.21	$ 0.20
Net income allocated to participating securities, diluted	(36)	(42)	(131)	(108)
Net income allocated to common shareholders, diluted	$ 1,502	$ 1,977	$ 5,732	$ 5,397
Effect of dilutive stock options and awards	70,000	95,000	57,000	118,000
Diluted weighted-average common shares	27,210,000	27,850,000	27,329,000	27,765,000
Diluted income per common share	$ 0.06	$ 0.07	$ 0.21	$ 0.19
Antidilutive securities excluded from computation of earnings per share	1,700,000	2,100,000	1,700,000	2,000,000
RSAs And RSUs [Member]
Income (Loss) Per Common Share [Line Items]
Effect of dilutive stock options and awards	330,000	232,000	321,000	216,000