Note 7 - Other Comprehensive Income - Accumulated Other Comprehensive Loss Balances (Details)	3 Months Ended
	Mar. 31, 2020 USD ($)
Balance	$ 1,126,507
Balance	2,553,342
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Balance	(5,348,812)
Accumulated Other Comprehensive Loss, Current period change	(1,363,503)
Balance	(6,712,315)
AOCI Attributable to Parent [Member]
Balance	(5,348,812)
Accumulated Other Comprehensive Loss, Current period change	(1,363,503)
Balance	$ (6,712,315)