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Contract Assets and Contract Liabilities (Tables) | 9 Months Ended
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Sep. 30, 2021
Contract Assets and Contract Liabilities [Abstract] |
Summary of costs and estimated earnings on uncompleted contracts |
|  |  | 2021 |  |  | 2020 |
| Costs incurred on uncompleted contracts |  | $ | 8,670,563 |  |  | $ | 4,572,581 |
| Provision for loss on uncompleted contracts |  |  | 1,321,094 |  |  |  | — |
| Estimated earnings (losses) to date on uncompleted contracts |  |  | (3,584,557 | ) |  |  | 872,302 |
| Gross contract assets |  |  | 6,407,100 |  |  |  | 5,444,883 |
| Less: billings to date |  |  | (7,098,658 | ) |  |  | (5,916,487 | )
| Net contract liabilities on uncompleted contracts |  | $ | (691,558 | ) |  | $ | (471,604 | )
Summary of condensed consolidated balance sheets |
|  |  | 2021 |  |  | 2020 |
| Contract assets |  | $ | 484,622 |  |  | $ | 1,303,136 |
| Contract liabilities |  |  | (1,176,180 | ) |  |  | (1,774,740 | )
| Net contract liabilities |  | $ | (691,558 | ) |  | $ | (471,604 | )

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