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Note 14 - Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Quarterly Financial Information [Table Text Block]

2012 Quarters (In thousands, except per share amounts)		First				Second				Third				Fourth
Operating revenue		$	151,474			$	156,964			$	163,606			$	166,412
Operating income			9,519				13,283				9,840				13,211
Net income			5,446				7,584				6,518				7,719
Basic earnings per common share			0.25				0.34				0.30				0.35
Diluted earnings per common share			0.25				0.34				0.29				0.35

2011 Quarters (In thousands, except per share amounts)		First				Second				Third				Fourth
Operating revenue		$	137,856			$	151,135			$	156,348			$	158,340
Operating income			7,609				11,359				11,111				12,951
Net income			4,095				6,194				6,333				7,663
Basic earnings per common share			0.19				0.28				0.29				0.35
Diluted earnings per common share			0.19				0.28				0.29				0.35

X

- Definition

Tabular disclosure of the quarterly financial data in the annual financial statements. The disclosure includes financial information for each fiscal quarter for the current and previous year, including revenues, gross profit, income (loss) before extraordinary items and cumulative effect of a change in accounting principle and earnings per share data.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 270

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)-(j)

-URI http://asc.fasb.org/extlink&oid=20225539&loc=d3e1280-108306

+ Details

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