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Summary of Significant Accounting Policies (Details) (USD $) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Use of Estimates |  |  |  |
Contract estimate writedown | $ 2,200,000 |  | $ 4,400,000 |
Cash paid for: |  |  |  |
Interest | 197,000 | 269,000 | 1,081,000 | 789,000
Income taxes | 307,000 | 1,928,000 | 1,231,000 | 5,051,000
Total | 504,000 | 2,197,000 | 2,312,000 | 5,840,000
Income Taxes |  |  |  |
Tax expense | $ 4,649,000 | $ 6,588,000 | $ 9,087,000 | $ 14,366,000
Effective tax rate (as a percent) |  |  | 35.10% | 38.80%
Federal statutory income taxes rate (as a percent) |  |  | 35.00% | 35.00%
State income taxes rate (as a percent) |  |  | 4.20% | 3.80%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation and Amortization, Percent |  |  | 1.70% |
Noncontrolling interest (as a percent) |  |  | (4.50%) |

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)(2)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 2 -Article 4 + Details
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