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Note 11 - Fair Value On a Recurring Basis (Details) - USD ($)
Mar. 31, 2016
Dec. 31, 2015
Fair Value, Inputs, Level 1 [Member] | Fair Value, Measurements, Recurring [Member]    
Assets    
Cash and cash equivalents $ 5,006,299 $ 1,985,953
Fair Value, Inputs, Level 3 [Member] | Contingent Consideration [Member]    
Liabilities    
Contingent consideration $ 10,000