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Note 5 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

(In thousands)		2012				2011				2010
Current:
Federal		$	12,728			$	6,524			$	2,747
State			587				1,362				1,645
			13,315				7,886				4,392
Deferred:
Federal			5,542				9,837				10,761
State			(720	)			239				(211	)
			4,822				10,076				10,550
Total provision		$	18,137			$	17,962			$	14,942

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

		2012				2011				2010
Statutory federal income tax rate			35	%			35	%			35	%
Per diem and other non-deductible expenses			5				6				6
Increase in taxes arising from state income taxes, net of federal income tax benefit			-				3				3
Other			-				(1	)			(1	)
Effective tax rate			40	%			43	%			43	%

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

(In thousands)		2012				2011
Deferred tax assets:
Reserves and accrued liabilities		$	5,687			$	5,326
Other			2,714				2,274
			8,401				7,600
Deferred tax liabilities:
Depreciation			111,794				106,113
Prepaid expenses			2,526				2,584
			114,320				108,697
Net deferred tax liability		$	105,919			$	101,097

X

- Definition

Tabular disclosure of the components of income tax expense attributable to continuing operations for each year presented including, but not limited to: current tax expense (benefit), deferred tax expense (benefit), investment tax credits, government grants, the benefits of operating loss carryforwards, tax expense that results from allocating certain tax benefits either directly to contributed capital or to reduce goodwill or other noncurrent intangible assets of an acquired entity, adjustments of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity, and adjustments of the beginning-of-the-year balances of a valuation allowance because of a change in circumstances that causes a change in judgment about the realizability of the related deferred tax asset in future years.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

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X

- Definition

Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319

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X

- Definition

Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319

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