Note 4 - Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Less accumulated depreciation and amortization	$ (3,405,756)	$ (251,684)
Total property, plant and equipment, net	115,450,841	46,433,726
Plant and Equipment, at Cost [Member]
Property, plant and equipment, gross	80,454,977	19,201,550
Construction in Progress [Member]
Property, plant and equipment, gross	7,625,855	11,847,904
Mine Development [Member]
Property, plant and equipment, gross	$ 30,775,765	$ 15,635,956