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Note 2 - Earnings Per Share Table (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Income From Continuing Operations For Calculating Basic and Diluted Earnings Per Share	$ 16,349	$ 15,204	$ 33,861	$ 31,109
Income From Discontinued Operations	0	134	0	6,785
Net Income For Calculating Basic and Diluted Earnings Per Share	$ 16,349	$ 15,338	$ 33,861	$ 37,894
Weighted-average Common Shares For Calculating Basic Earnings Per Share	28,658	31,087	29,119	31,199
Stock Options, Warrants and Nonvested Awards	746	782	759	773
Weighted-average Common Shares For Calculating Diluted Earnings Per Share	29,404	31,869	29,878	31,972
Income from continuing operations (basic)	$ 0.57	$ 0.49	$ 1.16	$ 1.00
Income from discontinued operations (basic)	$ 0	$ 0	$ 0	$ 0.21
Net income per basic share	$ 0.57	$ 0.49	$ 1.16	$ 1.21
Income from continuing operations (diluted)	$ 0.56	$ 0.48	$ 1.13	$ 0.97
Income from discontinued operations (diluted)	$ 0	$ 0	$ 0	$ 0.21
Net income per diluted share	$ 0.56	$ 0.48	$ 1.13	$ 1.18

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