Note 19 - Employee Benefit Plan (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]      
Defined Contribution Plan, Employer Matching Contribution, Percent of Match 25.00%    
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay 6.00%    
Defined Contribution Plan, Employer Discretionary Contribution Amount $ 121,399 $ 101,700 $ 71,571