Note 3 - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)	Sep. 30, 2017	Dec. 31, 2016
Less: accumulated depreciation, depletion and amortization	$ (1,586,667)	$ (251,684)
Total property, plant and equipment, net	103,011,333	46,433,726
Plant and Equipment, at Cost [Member]
Property, plant and equipment, gross	36,764,824	19,201,550
Construction in Progress [Member]
Property, plant and equipment, gross	47,984,431	11,847,904
Mine Development [Member]
Property, plant and equipment, gross	$ 19,848,745	$ 15,635,956