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Convertible Loan (Details Narrative) - USD ($) |  |  |  |  |  |  |  | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 05, 2016 | Dec. 05, 2016 | Oct. 11, 2016 | Jul. 10, 2016 | Jun. 10, 2016 | Mar. 31, 2016 | Jan. 04, 2016 | Apr. 29, 2014 | Dec. 31, 2015 | Dec. 31, 2016 | Dec. 31, 2015 | Nov. 13, 2013
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of common stock shares issued for settlement of interest expense |  |  |  |  |  |  | 38,086 |  |  |  |  |
Number of common stock issued for settlement of interest expense |  |  |  |  |  |  |  |  | $ 200,000 |  |  |
Interest expense |  |  |  |  |  |  |  |  |  | $ 100,000 |  |
Convertible debt |  |  |  |  |  |  |  |  | $ 6,154,000 | 5,431,000 | $ 6,154,000 |
Loss on extinguishment debt |  |  |  |  |  |  |  |  |  | (3,322,000) |  |
Amortization of debt discount |  |  |  |  |  |  |  |  |  | $ 1,839,000 | $ 1,809,000 |
Amortization of discount period |  |  |  |  |  |  |  |  |  | 3 months | 3 months |
Tranche 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued for extinguishment of debt |  | 2,487,562 |  |  |  |  |  |  |  |  |  |
Common stock issued for extinguishment of debt, value |  | $ 2,500,000 |  |  |  |  |  |  |  |  |  |
Tranche Two [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Common stock issued for extinguishment of debt, value |  | 5,500,000 |  |  |  |  |  |  |  |  |  |
RCF Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from notes payable |  | 2,500,000 |  |  |  |  |  |  |  |  |  |
Debt conversation amount |  | 5,500,000 |  |  |  |  |  |  |  |  |  |
Common stock issued for extinguishment of debt | 2,487,562 |  |  |  |  |  |  |  |  | 38,086 |  |
Common stock issued for extinguishment of debt, value | $ 2,500,000 |  |  |  |  |  |  |  |  | $ 200,000 |  |
Loss on extinguishment debt | $ 3,300,000 | $ 3,300,000 |  |  |  |  |  |  |  |  |  |
RCF Loan [Member] | Board of Directors [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Convertible debt |  |  |  |  |  |  |  |  |  | 5,500,000 |  |
Resource Capital Fund V LP [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Interest paid |  |  | $ 200,000 | $ 200,000 | $ 300,000 | $ 200,000 |  |  |  | 100,000 |  |
Amortization of debt discount |  |  |  |  |  |  |  |  |  | $ 1,800,000 |  |
Loan Agreement [Member] | Resource Capital Fund V LP [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt maturity date |  |  |  |  |  |  |  |  |  | Dec. 31, 2016 |  |
Debt interest rate |  |  |  |  |  |  |  |  |  | 10.00% |  |
Resource Capital Fund V LP [Member] | Secured Convertible Loan Facility [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  | $ 15,000,000
Resource Capital Fund V LP [Member] | Secured Convertible Loan Facility [Member] | Maximum [Member] | Loan Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit fee available |  |  |  |  |  |  |  | $ 15,000,000 |  |  |  |
Resource Capital Fund V LP [Member] | Secured Convertible Loan Facility [Member] | Minimum [Member] | Loan Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit fee available |  |  |  |  |  |  |  | $ 8,000,000 |  |  |  |
RCF Management L.L.C [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Debt interest rate | 15.00% | 15.00% |  |  |  |  |  |  |  |  |  |
Proceeds from notes payable |  | $ 5,500,000 |  |  |  |  |  |  |  |  |  |
Debt instruments maturity date description |  | extend the maturity date from December 31, 2016 to March 31, 2017 |  |  |  |  |  |  |  |  |  |

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- Definition Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28541-108399 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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- Definition Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The value of the financial instrument(s) that the original debt is being converted into in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 + Details
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- Definition The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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