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Claims revenue (Tables) | 12 Months Ended
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Dec. 31, 2014
Contractors [Abstract] |
Schedule of claims revenue |
Year ended December 31, |  | 2014 |  |  | 2013 |
Claims revenue recognized |  | $ | 8,230 |  |  | $ | 17,053 |
Claims revenue uncollected (classified as unbilled revenue) |  | 4,622 |  |  | 8,074 |

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- Definition Schedule of Contract Claims Revenue [Table Text Block] + References No definition available. + Details
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- Details
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