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Inventories (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012
Inventory Disclosure [Abstract] |  |  |  |  |
Losses incurred on valuation of inventory and write-off of obsolete inventory | $ 256 | $ 0 | $ 524 | $ 278 |
Current: |  |  |  |  |
Raw materials | 1,125 |  | 1,125 |  | 734
Finished goods | 11,317 |  | 11,317 |  | 10,139
Inventories, current | 12,442 |  | 12,442 |  | 10,873
Long-term: |  |  |  |  |
Raw materials | 527 |  | 527 |  | 891
Finished Goods | 593 |  | 593 |  | 1,064
Inventory, Noncurrent | 1,120 |  | 1,120 |  | 1,955
Inventory, finished goods, amount under consignment | $ 1,486 |  | $ 1,486 |  | $ 1,289

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