Note 1 - Basis of Presentation (Details) - $ / shares		3 Months Ended		6 Months Ended
		Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Disclosure Text Block [Abstract]
Earnings Per Share, Diluted, Year-to-Date Roll-forward Amount		$ 0.71
Earnings Per Share, Diluted, Difference from Actual Amount		0.04
Earnings Per Share, Diluted	[1]	$ 0.67	$ 0.60	$ 1.10	$ 0.87

[1] EPS are computed independently for each quarter and therefore the sum of each quarterly EPS may not equal the year-to-date EPS. As a result of the large stock issuances during 2015 as part of the Company's acquisitions, the computed independent quarterly average common shares outstanding and the computed year-to-date average common shares differ significantly. For purposes of calculating a roll-forward amount for year-to-date EPS, diluted EPS for the second quarter would require a computed amount of $0.71, producing a difference of $.04 from actual second quarter diluted EPS of $0.67. This difference is based on the direct result of the varying denominator for each period presented.