Liquidity (Details Narrative) - USD ($)						1 Months Ended			12 Months Ended
	Sep. 25, 2017	Apr. 14, 2017	Feb. 16, 2017	Jan. 19, 2017	Jan. 05, 2017	Dec. 31, 2017	Feb. 28, 2017	Jan. 31, 2017	Dec. 31, 2017	Dec. 31, 2016
Working capital						$ 3,900,000			$ 3,900,000	$ 4,200,000
Increase in working capital									8,100,000
Net proceeds from direct offering				$ 8,900,000		2,000,000	$ 4,500,000	$ 8,900,000
Number of common stock issued				1,399,140
Number of common shares issued value									15,321,000	$ 13,949,000
Aspire Capital Fund LLC [Member]
Net proceeds from direct offering	$ 22,000,000		$ 4,500,000
Number of common stock issued	880,000		2,100,000
Common Stock Purchase Agreement [Member] | Aspire Capital Fund LLC [Member]
Number of common stock shares issued to commitment fee	880,000
Common Stock Purchase Agreement [Member] | Aspire Capital Fund LLC [Member] | Maximum [Member]
Available for future sales	$ 22,000,000
Sale of common stock shares	5,033,677
Common Stock Purchase Agreement [Member] | Aspire Capital Fund LLC [Member] | Minimum [Member]
Average price per shares issued	$ 1.38
March 1, 2018 [Member] | Common Stock Purchase Agreement [Member] | Aspire Capital Fund LLC [Member]
Available for future sales						19,800,000			$ 19,800,000
Number of common stock shares limited to current Exchange Cap									2,600
ATM Offering [Member]
Net proceeds from direct offering		$ 30,000,000
Number of common stock issued		812,723
RCF Loan [Member]
Repayment of debt									$ 5,500,000
Laramide Resources Ltd [Member]
Cash balance						2,200,000			2,200,000
Promissory debt						$ 5,000,000			$ 5,000,000
Number of common stock issued					2,218,333				2,218,333
Number of common shares issued value									$ 900,000
Warrant to purchase of common stock					2,218,333	2,218,333			2,218,333
Fair value of warrants									$ 500,000
Laramide Resources Ltd [Member] | January 2018 [Member]
Repayment of debt									$ 1,500,000
Cantor Fitzgerald & Co [Member] | ATM Offering [Member]
Net proceeds from direct offering		$ 30,000,000
Cantor Fitzgerald & Co [Member] | ATM Offering [Member] | March 1, 2018 [Member]
Available for future sales		$ 28,800,000