Note 9 - Income Taxes - Income Tax (Expense) Benefit (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal, current
State, current
Foreign, current
Deferred:
Federal, deferred	7,432,665	1,446,640
State, deferred	1,459,313	244,896
Foreign, deferred
Change in valuation allowance	(8,891,978)	(1,691,536)
Total Benefit for Income Taxes