Federal Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Components of Future Tax Assets and Liabilities

Our future tax assets and liabilities at December 31, 2014 and 2013 include the following components:

	December 31,
	2014			2013
Deferred tax assets:
Non-Current:
Net operating loss carryforwards	$	71,882		$	63,539
Mineral properties		11,375			14,153
Equipment & Furniture		133			127
Restoration Reserves		1,360			1,303
Stock-based compensation		199			—
Derivatives		—			37
Deferred tax assets		84,949			79,159
Valuation allowance		(82,435	)		(78,544	)
Net	$	2,514		$	615
Deferred tax liabilities:
Current:
Prepaids and other		100		$	50
		100			50
Non-Current:
Derivatives		(956	)		—
Equipment & Furniture		(1,658	)		(665	)
		(2,614	)		(665	)
Deferred tax liabilities		(2,514	)		(615	)
Net deferred tax asset (liability)	$	—		$	—

Schedule of Reconciliation of Expected Income Tax on Net Income at Statutory Rates

A reconciliation of expected income tax on net income at statutory rates is as follows:

	Year ended December 31,
	2014			2013
Net loss	$	(10,684	)	$	(20,294	)
Statutory tax rate		34	%		34	%
Tax recovery at statutory rate		(3,633	)		(6,900	)
Change in tax rates		—			636
Mineral property adjustments		1,975			(4,210	)
Stock based compensation		12			416
Operating loss carryforward adjustment		(2,251	)		636
Nondeductible write-offs		6			126
Change in valuation allowance		3,891			9,296
Income tax expense (recovery)		$—			$—