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Accrued Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2012
Accrued Liabilities [Abstract] |
Components of accrued liabilities | The components of accrued liabilities are summarized below (in thousands):
|  | September 30, |  |  | December 31, |
|  | 2012 |  |  | 2011 |
Accrued compensation and related charges |  |  | 1,099 |  |  |  | 1,807 |
Current portion of royalty payments |  |  | 913 |  |  |  | 1,375 |
Accrued product warranty |  |  | 697 |  |  |  | 1,003 |
Accrued professional services |  |  | 689 |  |  |  | 650 |
Accrued income taxes |  |  | 526 |  |  |  | 306 |
Advances from customers |  |  | 242 |  |  |  | 74 |
Loan commitment for related party notes receivable |  |  | - |  |  |  | 868 |
Other accrued liabilities |  |  | 2,634 |  |  |  | 1,514 |
|  | $ | 6,800 |  |  | $ | 7,597 |

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