Note 14 - Weighted Average Shares Outstanding, Basic and Diluted Earnings Per Share Calculations (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Basic weighted average shares outstanding (in shares)	37,568,274	33,375,753	37,654,494	33,373,859
Effect of dilutive securities (in shares)	204,685	145,737	190,064	162,200
Diluted weighted average shares outstanding (in shares)	37,772,959	33,521,490	37,844,558	33,536,059