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Revenue Recognition - Schedule of Significant Changes in Contract Assets and Liabilities (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Contractors [Abstract] |  |
Contract assets | $ 987 | $ 680
Change in Contract Asset | $ 307 |
Percent Change in Contract Asset | 45.10% |
Contract liabilities | $ 0 | (5)
Change in Contract Liability | $ 5 |
Percent Change in Contract Liability | 100.00% |
Net contract assets (liabilities) | $ 987 | $ 675
Change in Net Contract Assets (Liabilities) | $ 312 |
Percent Change in Net Contract Assets (Liabilities) | 46.20% |

X
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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130531-203044 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130533-203044 + Details
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