Summary of Significant Accounting Policies (General Contractor Revenue) (Details) (USD $)	Dec. 31, 2011	Dec. 31, 2010
Accounting Policies [Abstract]
Costs in Excess of Billings on Uncompleted Contracts or Programs	$ (10,600,000)
Billings in Excess of Cost		$ 160,000

Liability attributable to (i) billings in excess of costs under the percentage of completion contract accounting method representing the difference between contractually invoiced amounts (billings) and revenue recognized based, for example, on costs incurred to estimated total costs at period end or (ii) contractually invoiced amounts (billings) in excess of costs incurred and accumulated under the completed contract accounting method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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+ Details

- Definition

Total amount included in cost of uncompleted contracts in excess of related billings, or unbilled accounts receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

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-Number 43

-Chapter 11

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

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+ Details