Convertible Loan	9 Months Ended
Sep. 30, 2017
Debt Disclosure [Abstract]
Convertible Loan	7. CONVERTIBLE LOAN On November 13, 2013, the Company entered into a loan agreement (the “RCF Loan”) with Resource Capital Fund V L.P. (“RCF”), whereby RCF agreed, subject to the terms and conditions set forth in the RCF Loan, to provide a secured convertible loan facility of up to $15.0 million to the Company, which was subsequently amended on April 29, 2014 to reduce the amount available thereunder from $15.0 million to $8.0 million. The Company exchanged $2.5 million in principal for shares of its common stock in December 2016 and repaid the $5.5 million outstanding balance under the RCF Loan on February 9, 2017. No further obligations remain under the RCF Loan following the repayment. In addition, on July 31, 2017, the Company and RCF terminated the Stockholders’ Agreement dated March 1, 2012, pursuant to which RCF had certain stock participation rights and Board rights. As a result of the repayment, the Company recorded a loss of $39,000 on the extinguishment of debt which represented the difference between the principal amount of $5.5 million and the carrying value of the RCF Loan on the date of repayment.

Convertible Loan

9 Months Ended

Sep. 30, 2017

7. CONVERTIBLE LOAN

On November 13, 2013, the Company entered into a loan agreement (the “RCF Loan”) with Resource Capital Fund V L.P. (“RCF”), whereby RCF agreed, subject to the terms and conditions set forth in the RCF Loan, to provide a secured convertible loan facility of up to $15.0 million to the Company, which was subsequently amended on April 29, 2014 to reduce the amount available thereunder from $15.0 million to $8.0 million. The Company exchanged $2.5 million in principal for shares of its common stock in December 2016 and repaid the $5.5 million outstanding balance under the RCF Loan on February 9, 2017. No further obligations remain under the RCF Loan following the repayment. In addition, on July 31, 2017, the Company and RCF terminated the Stockholders’ Agreement dated March 1, 2012, pursuant to which RCF had certain stock participation rights and Board rights.

As a result of the repayment, the Company recorded a loss of $39,000 on the extinguishment of debt which represented the difference between the principal amount of $5.5 million and the carrying value of the RCF Loan on the date of repayment.