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Accrued Liabilities (Tables) | 3 Months Ended
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Mar. 31, 2018
Payables And Accruals [Abstract] |
Accrued Liabilities | Accrued liabilities at March 31, 2018 and December 31, 2017, consisted of the following (in thousands):
|  | March 31, 2018 |  |  | December 31, 2017 |
Accrued compensation and related costs |  | $ | 5,613 |  |  | $ | 7,372 |
Accrued professional services |  |  | 3,006 |  |  |  | 2,605 |
Accrued customer obligations |  |  | 696 |  |  |  | 481 |
Accrued insurance premiums |  |  | 254 |  |  |  | 507 |
Other accrued expenses |  |  | 788 |  |  |  | 747 |
Total accrued liabilities |  | $ | 10,357 |  |  | $ | 11,712 |

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