Note 4 - Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2014

Accounting Policies [Abstract]

Property, Plant and Equipment [Table Text Block]

	Estimated Useful Life (years)
Building and Building Improvements	20 – 40
Mining equipment	2 – 7
Office and shop furniture and equipment	3 – 7
Vehicles	5

Fair Value, Liabilities Measured on Recurring Basis [Table Text Block]

	Fair value measurement using inputs				Carrying amount
	Level 1	Level 2		Level 3	September 30, 2014		December 31, 2013
Financial instruments:
Warrant derivative		$	136,000		$	136,000	$	950,000
PIK Note derivative		$	529,200		$	529,200	$	2,250,000

Fair Value Inputs, Liabilities, Quantitative Information [Table Text Block]

Warrant derivative liability	Fair Value Measurements
	Using Inputs
	September 30, 2014			December 31, 2013
Market price and estimated fair value of stock	$	0.72		$	1.10
Exercise price	$	1.93		$	1.93
Term (years)		2.25			3.00
Dividend yield		--			--
Expected volatility *		51.5	%		76.9	%
Risk-free interest rate		0.68	%		0.78	%

PIK Note derivative liability	Fair Value Measurements
	Using Inputs
	September 30, 2014			December 31, 2013
Market price and estimated fair value of stock	$	0.72		$	1.10
Exercise price	$	1.40		$	1.40
Term (years)		8.92			9.58
Dividend yield		--			--
Expected volatility *		60.2	%		76.9	%
Risk-free interest rate		2.42	%		2.96	%