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Costs and Estimated Earnings in Excess of Billings - Additional Information (Detail) (USD $) | Sep. 30, 2014 | Sep. 30, 2013
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Costs in Excess of Billings on Uncompleted Contracts or Programs [Abstract] |  |
Costs and estimated earnings in excess of billings on uncompleted contracts | $ 1,125,000 | $ 0

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- Definition Amount of billed or unbilled claims or other similar items subject to uncertainty concerning their determination or ultimate realization under long-term contracts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(c)(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph c(3) -Article 5 + Details
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