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Accrued Liabilities (Tables) | 6 Months Ended
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Jun. 30, 2012
Accrued Liabilities [Abstract] |
Accrued liabilities | Accrued liabilities at June 30, 2012, and December 31, 2011, consisted of the following (in thousands):
|  | June 30, |  |  | December 31, |
|  | 2012 |  |  | 2011 |
Accrued compensation and related costs |  | $ | 1,661 |  |  | $ | 2,027 |
Accrued inventory costs |  |  | 2,323 |  |  |  | 1,417 |
Accrued contract and other accrued expenses |  |  | 2,591 |  |  |  | 2,381 |
Total accrued liabilities |  | $ | 6,575 |  |  | $ | 5,825 |

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- Definition Tabular disclosure of the components of accrued liabilities. + References No definition available. + Details
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