Note 14 - Income Taxes - Income Tax Reconciliation (Details) - USD ($)	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Federal tax expense (benefit) at statutory rate, amount	$ 2,321,442		$ 3,006,961
State Income Taxes, amount	(27,503)		440,396
Permanent Differences, amount	399,639		98,271
Change in Valuation Allowance, amount	(1,128,464)		55,999
Foreign Rate Differential, amount	24,289		(20,995)
Total	$ 1,589,403		$ 3,580,632
Federal tax expense (benefit) at statutory rate, percent	34.00%	34.00%	34.00%
State Income Taxes, percent	(0.40%)		4.98%
Permanent Differences, percent	5.85%		1.11%
Foreign Rate Differential, percent	0.36%		0.24%
Change in Valuation Allowance, percent	(16.53%)		0.63%
Total tax expense/(benefit)	23.28%		40.48%