XML 36 R9.htm IDEA: XBRL DOCUMENT v2.4.0.8

Costs and Estimated Earnings in Excess of Billings

12 Months Ended

Sep. 30, 2013

Text Block [Abstract]

Costs and Estimated Earnings in Excess of Billings

NOTE 3 - COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS

There were no costs and estimated earnings in excess of billings on uncompleted contracts as of September 30, 2013. Costs and estimated earnings in excess of billings on uncompleted contracts as of September 30, 2012 consisted of the following:

		September 30, 2012
Costs incurred on uncompleted contracts		$	4,986,000
Estimated earnings			1,518,000
			6,504,000
Billings to date			3,056,000
Costs and estimated earnings in excess of billings		$	3,448,000

X

- Definition

Costs and estimated earnings in excess of billings.

+ References

No definition available.

+ Details

Name:	genc_CostsAndEstimatedEarningsInExcessOfBillingsTextBlock
Namespace Prefix:	genc_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_TextBlockAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration