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Costs and Estimated Earnings on Uncompleted Contracts (Tables) | 9 Months Ended
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Sep. 30, 2013
Costs and Estimated Earnings on Uncompleted Contracts [Abstract] |
Summary of costs and estimated earnings on uncompleted contracts |
|  | 2013 |  |  | 2012 |
Costs incurred on uncompleted contracts |  | $ | 735,025 |  |  | $ | 177,529 |
Provision for loss on uncompleted contracts |  |  | 10,177 |  |  |  | 6,680 |
Estimated income (loss) |  |  | (25,249 | ) |  |  | 6,156 |
|  |  | 719,953 |  |  |  | 190,365 |
Less: billings to date |  |  | (422,582 | ) |  |  | (223,678 | )
|  | $ | 297,371 |  |  | $ | (33,313 | )
Summary of costs and estimated earnings amounts on uncompleted contracts included in balance sheets |
|  | 2013 |  |  | 2012 |
Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 324,370 |  |  | $ | 36,476 |
Billings in excess of cost and estimated earnings on uncompleted contracts |  |  | (26,999 | ) |  |  | (69,789 | )
|  | $ | 297,371 |  |  | $ | (33,313 | )

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