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Unbilled Receivables (Tables) | 6 Months Ended
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Jul. 01, 2018
Contractors [Abstract] |
Schedule of Unbilled Receivables | Unbilled receivables consisted of the following:
| July 1, 2018 |  | December 31, 2017
Unbilled revenue | $ | 24,610 |  |  | $ | 21,845 |
Advances and progress billings | (17,485 | ) |  | (16,605 | )
Net unbilled receivables | $ | 7,125 |  |  | $ | 5,240 |

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- Definition Tabular disclosure for billings on uncompleted contracts in excess of costs and costs of uncompleted contracts in excess of billings. + References No definition available. + Details
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