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Costs and Estimated Earnings on Uncompleted Contracts (Tables) | 12 Months Ended
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Dec. 31, 2018
Costs and Estimated Earnings on Uncompleted Contracts [Abstract] |
Summary of Costs and Estimated Earnings on Uncompleted Contracts |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | As of |  | As of
﻿ |  | December 31, 2018 |  | December 31, 2017
﻿ |  |  |  |  |  |
﻿ |  | (in thousands)
﻿Costs incurred on uncompleted contracts |  | $ | 38,464 |  | $ | 31,404
﻿Estimated earnings |  |  | 16,655 |  |  | 10,541
﻿Billings to date |  |  | (31,952) |  |  | (24,771)
﻿ |  | $ | 23,167 |  | $ | 17,174
﻿
Costs and Estimated Earnings on Uncompleted Contracts Accompanying Consolidated Balance Sheets |
﻿ |  |  |  |  |  |
﻿ |  |  |  |  |  |
﻿ |  | As of |  | As of
﻿ |  | December 31, 2018 |  | December 31, 2017
﻿ |  |  |  |  |  |
﻿ |  | (in thousands)
﻿Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 23,785 |  | $ | 17,437
﻿Billings in excess of costs and estimated earnings on |  |  |  |  |  |
﻿uncompleted contracts (included in Other current liabilities) |  |  | (618) |  |  | (263)
﻿ |  | $ | 23,167 |  | $ | 17,174
﻿

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