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INTANGIBLES AND OTHER ASSETS (Tables) | 9 Months Ended
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Sep. 30, 2012
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Indefinite-Lived and Finite-Lived Intangible Assets |
| Estimated Useful Life
Intellectual property | 10 years
Patents | life of patent
Intangibles—acquired technology | 7 – 15 years
Intangibles—third party payor relationships | Indefinite
Intangibles—customer relationships | 5 years
Intangibles—covenants not to compete | 3 years
Intangibles—tradenames and trademarks | 7 years
Long-lived intangible assets and other assets consisted of the following:
| Dollars in Thousands
| September 30, 2012 |  | December 31, 2011
| Cost |  | Accumulated Amortization |  | Net Book Value |  | Cost |  | Accumulated Amortization |  | Net Book Value
Intangibles—acquired technology | $ | 9,100 |  |  | $ | 1,594 |  |  | $ | 7,506 |  |  | $ | 6,535 |  |  | $ | 911 |  |  | $ | 5,624 |
Intangibles—assay royalties | 1,434 |  |  | 359 |  |  | 1,075 |  |  | 1,434 |  |  | 205 |  |  | 1,229 |
Intangibles—third party payor relationships | 367 |  |  | — |  |  | 367 |  |  | 367 |  |  | — |  |  | 367 |
Intangibles—tradenames and trademarks | 842 |  |  | 86 |  |  | 756 |  |  | 344 |  |  | 49 |  |  | 295 |
Intangibles—customer relationships | 695 |  |  | — |  |  | 695 |  |  | — |  |  | — |  |  | — |
Intangibles—covenants not to compete | 277 |  |  | — |  |  | 277 |  |  | — |  |  | — |  |  | — |
Patents | 915 |  |  | 266 |  |  | 649 |  |  | 703 |  |  | 267 |  |  | 436 |
Intellectual property | 170 |  |  | 10 |  |  | 160 |  |  | 20 |  |  | 5 |  |  | 15 |
| $ | 13,800 |  |  | $ | 2,315 |  |  | $ | 11,485 |  |  | $ | 9,403 |  |  | $ | 1,437 |  |  | $ | 7,966 |
Schedule of Intangible Assets, Valuation Approach | The following intangible assets were each valued separately using valuation approaches most appropriate for each specific asset.
Intangibles—acquired technology | Relief from Royalty Method
Intangibles—tradenames | Relief from Royalty Method
Intangibles—customer relationships | Multi-Period Excess Earnings Method
Intangibles—covenants not to compete | With and Without Method
Patents | Relief from Royalty Method

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