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				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Income Per Common Share [Abstract]
Net income	$ 1,785		$ 3,334		$ 3,977		$ 4,325
Net income allocated to participating securities, basic	(40)		(77)		(91)		(96)
Net income allocated to common shareholders, basic	1,745		3,257		3,886		4,229
Basic weighted-average common shares outstanding	26,856,000		26,864,000		26,858,000		27,022,000
Basic income per common share	$ 0.06		$ 0.12		$ 0.14		$ 0.16
Net income allocated to participating securities, diluted	(40)		(76)		(90)		(95)
Net income allocated to common shareholders, diluted	$ 1,745		$ 3,258		$ 3,887		$ 4,230
Effect of dilutive stock options and awards	513,000	[1]	313,000	[1]	598,000	[1]	340,000	[1]
Diluted weighted-average common shares outstanding	27,369,000		27,177,000		27,456,000		27,362,000
Diluted income per common share	$ 0.06		$ 0.12		$ 0.14		$ 0.15
Antidilutive securities excluded from computation of earnings per share	1,300,000		1,800,000		1,200,000		1,800,000

[1] The Company excluded stock options from the calculation of diluted weighted-average common shares outstanding if the per share value, including the sum of (i) the exercise price of the options and (ii) the amount of the compensation cost attributed to future services and not yet recognized, was greater than the average market price of the shares because the inclusion of these stock options would be antidilutive to income per common share. Accordingly, stock options to purchase a weighted-average 1.3 million shares for the three months ended and 1.2 million shares for the six months ended June 30, 2013 and 1.8 million shares for both the three and six months ended June 30, 2012 were excluded from the calculation of diluted weighted-average common shares outstanding.