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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] |
Costs and estimated earnings on uncompleted contracts |
$ in thousands |  | 2012 |  |  | 2011 |
Costs incurred on uncompleted contracts |  | $ | 51,035 |  |  | $ | 57,345 |
Estimated earnings |  |  | 16,644 |  |  |  | 17,512 |
|  |  | 67,679 |  |  |  | 74,857 |
Less billings to date |  |  | (73,300 | ) |  |  | (73,861 | )
|  | $ | (5,621 | ) |  | $ | 996 |
Included in the accompanying consolidated balance sheets under the following captions: |  |  |  |  |  |  |  |
Costs and estimated earnings in excess of billings on uncompleted contracts |  | $ | 5,747 |  |  | $ | 10,643 |
Billings in excess of costs and estimated earnings on uncompleted contracts |  |  | (11,368 | ) |  |  | (9,647 | )
|  | $ | (5,621 | ) |  | $ | 996 |

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