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Cash and Cash Equivalents (Tables) | 12 Months Ended
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Dec. 31, 2017
Cash, Cash Equivalents, and Short-term Investments [Abstract] |
Schedule of Cash and Cash Equivalents | Cash and cash equivalents consisted of the following (in thousands):
|  | December 31,
|  | 2017 |  | 2016
Cash and cash equivalents: |  |  |  |
Cash |  | $ | 48,855 |  |  | $ | 38,053 |
Money market funds |  | 20,092 |  |  | 20,069 |
Total cash and cash equivalents |  | $ | 68,947 |  |  | $ | 58,122 |

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- Definition Tabular disclosure of the components of cash and cash equivalents. + References No definition available. + Details
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