Note 3 - Property, Plant and Equipment (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Property, Plant and Equipment [Table Text Block]

	June 30, 2017			December 31, 2016
Plant and equipment	$	31,009,270		$	19,201,550
Construction in process		41,070,809			11,847,904
Capitalized mine development costs		16,981,039			15,635,956
Less: accumulated depreciation, depletion and amortization		(727,462	)		(251,684	)
Total property, plant and equipment, net	$	88,333,656		$	46,433,726