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PROPERTY AND EQUIPMENT (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | $ 22,024 |  | $ 22,024 |  | $ 18,443
Less: accumulated depreciation | (3,939) |  | (3,939) |  | (3,300)
Total | 18,085 |  | 18,085 |  | 15,143
Depreciation expense | 239 | 204 | 693 | 731 |
Trucks and trailers |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | 1,012 |  | 1,012 |  | 1,041
Office furniture and equipment |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | 2,057 |  | 2,057 |  | 1,163
Drill rigs |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | 998 |  | 998 |  | 998
Building |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | 1,514 |  | 1,514 |  | 1,469
Land |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | 8,699 |  | 8,699 |  | 8,672
Mining equipment |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | 1,452 |  | 1,452 |  | 1,206
Construction in process |  |  |  |  |
PROPERTY AND EQUIPMENT |  |  |  |  |
Subtotal | $ 6,292 |  | $ 6,292 |  | $ 3,894

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