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SHAREHOLDERS' EQUITY (Details)
|
1 Months Ended |
3 Months Ended |
12 Months Ended |
3 Months Ended |
|
0 Months Ended |
|
Jan. 31, 2013
|
Sep. 30, 2013
Item
|
Dec. 31, 2013
USD ($)
Item
|
Dec. 31, 2012
USD ($)
|
Dec. 31, 2011
USD ($)
|
Sep. 30, 2013
Maximum
|
Dec. 31, 2012
Litigation settlement agreement with respect to the Los Azules Copper Project
TNR
USD ($)
|
Jan. 24, 2012
Minera Andes Inc.
USD ($)
|
Jan. 24, 2012
Minera Andes Inc.
CAD
|
| Shares of common stock issued upon exercise of stock options |
1,000,000 |
|
48,000 |
445,000 |
163,000 |
|
|
45,000 |
45,000 |
| Litigation settlement liabilities |
|
|
$ 200,000 |
|
|
|
|
|
|
| Weighted average exercise price of stock options (in dollars per share) |
|
|
$ 1.97 |
$ 1.84 |
$ 2.52 |
|
|
|
1.80 |
| Proceeds from exercise of stock options |
|
|
171,000 |
3,885,000 |
773,000 |
|
|
76,926 |
|
| Shares of common stock issued as payment for mining concessions in Mexico |
|
|
41,500 |
|
|
|
|
|
|
| Settlement agreement regarding outstanding litigation |
|
|
|
|
|
|
|
|
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| Litigation settlement liability |
|
|
|
$ 3,830,000 |
|
|
$ 3,800,000 |
|
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| Number of mining contractors with which the entity has entered into an agreement |
|
1 |
1 |
|
|
|
|
|
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| Number of shares to be issued to settle parts of expected future account payables |
|
|
|
|
|
2,500,000 |
|
|
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| Initial term of the agreement |
|
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6 months |
|
|
|
|
|
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| Number of shares required to be issued under the agreement |
|
|
90,300 |
|
|
|
|
|
|
| Exchangeable shares converted into common stock |
|
|
51,100,000 |
|
|
|
|
|
|
| Outstanding Exchangeable Shares not exchanged |
|
|
32,200,000 |
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|
|
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