Note 14 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Income Tax Expense (Benefit)	$ 1,589,403		$ 3,580,632
Deferred Tax Assets, Gross	1,250,748		2,411,984
Deferred Tax Assets, Valuation Allowance	$ 29,077		$ 1,232,512
Deferred Tax Assets, Valuation Allowance, Percent	2.30%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%	34.00%	34.00%