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SHAREHOLDERS' EQUITY (Details) (USD $) | 1 Months Ended | 3 Months Ended | 9 Months Ended |  | 3 Months Ended | 0 Months Ended |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 31, 2013 | Sep. 30, 2013 Item | Sep. 30, 2013 Item | Sep. 30, 2012 | Dec. 31, 2012 | Sep. 30, 2013 Maximum | Jan. 24, 2012 Minera Andes Inc. | Dec. 31, 2012 Litigation settlement agreement with respect to the Los Azules Copper Project TNR
Exchangeable shares converted into common stock |  |  | 49,900,000 |  |  |  |  |
Outstanding Exchangeable Shares not exchanged |  | 33,500,000 | 33,500,000 |  |  |  |  |
Shares of common stock issued upon exercise of stock options | 1,000,000 |  | 48,000 |  |  |  | 45,000 |
Weighted average exercise price of stock options (in dollars per share) |  |  | $ 1.97 |  |  |  | $ 1.80 |
Proceeds from exercise of stock options |  |  | $ 171,000 | $ 3,564,000 |  |  | $ 76,926 |
Shares of common stock issued as payment for mining concessions in Mexico |  |  | 41,500 |  |  |  |  |
Settlement agreement regarding outstanding litigation |  |  |  |  |  |  |  |
Litigation settlement liability |  |  |  |  | $ 3,830,000 |  |  | $ 3,800,000
Number of mining contractors with which the entity has entered into an agreement |  | 1 | 1 |  |  |  |  |
Number of shares to be issued to settle parts of expected future account payable |  |  |  |  |  | 2,500,000 |  |
Term of the agreement |  |  | 6 months |  |  |  |  |
Number of shares agreed to be issued under the agreement |  |  | 15,800 |  |  |  |  |

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- Definition The number of shares converted in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "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 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 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: 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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