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Contract Assets and Contract Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2018
Contract Assets and Contract Liabilities [Abstract] |
Summary of costs and estimated earnings on uncompleted contracts |
|  |  | 2018 |  |  | 2017 |
| Costs incurred on uncompleted contracts |  | $ | 11,307,975 |  |  | $ | 3,681,965 |
| Estimated earnings to date on uncompleted contracts |  |  | 838,615 |  |  |  | 328,273 |
| Gross contract assets |  |  | 12,146,590 |  |  |  | 4,010,238 |
| Less: billings to date |  |  | (13,221,152 | ) |  |  | (5,622,111 | )
| Net contract assets (liabilities) |  | $ | (1,074,562 | ) |  | $ | (1,611,873 | )
Summary of costs included in condensed consolidated balance sheets |
|  |  | 2018 |  |  | 2017 |
| Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 260,325 |  |  | $ | 61,175 |
| Billings in excess of costs and estimated earnings on uncompleted contracts |  |  | (1,334,887 | ) |  |  | (1,673,048 | )
| Net contract assets (liabilities) |  | $ | (1,074,562 | ) |  | $ | (1,611,873 | )

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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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