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Accounts Receivable -Project Revenue and Project Costs (Narrative) (Details) (Approximations [Member], USD $)
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3 Months Ended | ||
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Mar. 31, 2013
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Mar. 31, 2012
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Dec. 31, 2012
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| Unbilled receivable | $ 200,000 | $ 200,000 | |
| Travel costs and reimbursable costs | 28,000 | 142,000 | |
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ENEC and FANR Projects [Member]
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| Accounts Receivable | $ 400,000 | $ 600,000 | |
| X | ||||||||||
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- Definition
For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Expenses incurred for travel and entertainment during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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