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Accrued Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2015
Accrued Liabilities [Abstract] |
Components of accrued liabilities | The components of accrued liabilities are summarized below (in thousands):
|  | March31, 2015 |  |  | December31, 2014 |
Accrued product warranty |  | $ | 392 |  |  | $ | 802 |
Accrued compensation and related charges |  |  | 1,718 |  |  |  | 2,656 |
Current portion of royalty payments |  |  | 744 |  |  |  | 800 |
Dividends payable by consolidated joint ventures |  |  | 646 |  |  |  | 563 |
Accrued professional services |  |  | 304 |  |  |  | 509 |
Accrued income taxes |  |  | 110 |  |  |  | 119 |
Other accrued liabilities |  |  | 1,901 |  |  |  | 2,185 |
|  | $ | 5,815 |  |  | $ | 7,634 |

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