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Costs and Estimated Earnings on Uncompleted Contracts (Tables) | 12 Months Ended
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Dec. 31, 2012
Costs and Estimated Earnings On Uncompleted Contracts [Abstract] |
Summary of costs and estimated earnings on uncompleted contracts |
|  | 2012 |  |  | 2011 |
Costs incurred on uncompleted contracts |  | $ | 177,529 |  |  | $ | 424,477 |
Provision for loss on uncompleted contracts |  |  | (6,680 | ) |  |  | - |
Estimated earnings |  |  | 19,516 |  |  |  | 41 |
|  |  | 190,365 |  |  |  | 424,518 |
Less: billings to date |  |  | (223,678 | ) |  |  | (358,064 | )
|  | $ | (33,313 | ) |  | $ | 66,454 |
Summary of costs and estimated earnings amounts on uncompleted contracts included in balance sheets |
|  | 2012 |  |  | 2011 |
Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 36,476 |  |  | $ | 66,454 |
Billings in excess of cost and estimated earnings on uncompleted contracts |  |  | (69,789 | ) |  |  | - |
|  | $ | (33,313 | ) |  | $ | 66,454 |

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