Quarterly Results (unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Results (unaudited) [Abstract]

Schedule of Quarterly Financial Information

The following table shows selected quarterly results for the Company.

(in thousands except per share data)
For the year ended December 31, 2012	First		Second		Third		Fourth		Total
Operating revenues	$	68,823	$	71,378	$	72,876	$	74,998	$	288,075
Operating income		8,817		11,137		5,407		9,297		34,658
Net income from continuing operations		4,408		5,722		1,415		5,058		16,603
Net income		4,466		5,560		1,361		4,916		16,303
Net income from continuing operations per share – basic and diluted	$	0.19	$	0.24	$	0.06	$	0.21	$	0.69
Net income per share – basic  and diluted		0.19		0.23		0.06		0.21		0.68
For the year ended December 31, 2011	First		Second		Third		Fourth		Total
Operating revenues	$	60,428	$	61,555	$	62,657	$	66,505	$	251,145
Operating income		7,091		7,994		9,170		8,035		32,290
Net income from continuing operations		3,060		3,038		3,615		3,825		13,538
Net income (loss)		3,027		2,992		3,002		3,972		12,993
Net income from continuing operations per share – basic and diluted	$	0.13	$	0.13	$	0.15	$	0.16	$	0.57
Net income per share – basic  and diluted		0.13		0.13		0.13		0.16		0.55