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COSTS, BILLINGS, AND ESTIMATED EARNINGS ON UNCOMPLETED CONTRACTS (Details) (USD $)	Sep. 30, 2014	Dec. 31, 2013	Dec. 31, 2012
Costs incurred on uncompleted contracts
Costs incurred on uncompleted contracts and estimated earnings		$ 2,476,716	$ 11,299,753
Less billings to date		(816,989)tge_BillingsToDate	(8,793,159)tge_BillingsToDate
Unbilled contracts receivable		1,659,727us-gaap_UnbilledContractsReceivable	2,506,594us-gaap_UnbilledContractsReceivable
Costs in excess of billings on uncompleted contracts
Cost and estimated earnings in excess of billings on uncompleted contracts	4,620,300	2,312,947	6,263,943
Billings in excess of costs and estimated earnings on uncompleted contracts	(2,531,275)us-gaap_BillingsInExcessOfCostCurrent	(653,220)us-gaap_BillingsInExcessOfCostCurrent	(3,757,349)us-gaap_BillingsInExcessOfCostCurrent
Unbilled contracts receivable		$ 1,659,727us-gaap_UnbilledContractsReceivable	$ 2,506,594us-gaap_UnbilledContractsReceivable

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 that are expected to be realized within one year or one operating cycle, whichever is longer, from the reporting date.

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