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GOLD AND SILVER BULLION (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
GOLD AND SILVER BULLION |  |  |
Total cost | $ 1,690,000 | $ 22,810,000 | $ 4,569,000
Changes in the Company's holdings of gold and silver |  |  |
Opening Balance | 22,810,000 | 4,569,000 |
Purchases |  | 31,299,000 | 1,810,000
Proceeds from sale | (23,836,000) | (11,739,000) |
Gain on sale | 3,075,000 | 2,075,000 |
Unrealized loss | (359,000) | (3,394,000) |
Ending Balance | 1,690,000 | 22,810,000 | 4,569,000
Gold |  |  |
GOLD AND SILVER BULLION |  |  |
# of ounces | 793,000 | 5,656 |
Average cost per ounce (in dollars per ounce) | 1,278.63 | 1,278.63 |
Total cost | 1,014,000 | 7,232,000 |
Fair value per ounce (in dollars per ounce) | 1,657.50 | 1,574.50 |
Total fair value | 1,314,000 | 8,905,000 |
Quantity sold (in ounces) | 4,863 |  |
Cost of investments sold | 6,200,000 |  |
Changes in the Company's holdings of gold and silver |  |  |
Opening Balance | 7,232,000 | 4,569,000 |
Purchases |  | 7,387,000 |
Proceeds from sale | (7,982,000) | (6,218,000) |
Gain on sale | 1,764,000 | 1,494,000 |
Ending Balance | 1,014,000 | 7,232,000 |
Silver |  |  |
GOLD AND SILVER BULLION |  |  |
# of ounces | 24,969,000 | 552,812 |
Average cost per ounce (in dollars per ounce) | 27.08 | 28.18 |
Total cost | 676,000 | 15,578,000 |
Fair value per ounce (in dollars per ounce) | 29.95 | 28.18 |
Total fair value | 748,000 | 15,578,000 |
Quantity sold (in ounces) | 527,843 |  |
Cost of investments sold | 14,500,000 |  |
Changes in the Company's holdings of gold and silver |  |  |
Opening Balance | 15,578,000 |  |
Purchases |  | 23,912,000 |
Proceeds from sale | (15,854,000) | (5,521,000) |
Gain on sale | 1,311,000 | 581,000 |
Unrealized loss | (359,000) | (3,394,000) |
Ending Balance | $ 676,000 | $ 15,578,000 |

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