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Income Taxes (Narrative) (Detail) - USD ($) | 12 Months Ended |  |
--- | --- | --- | ---
Sep. 27, 2016 | Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2012
Operating Loss Carryforwards [Line Items] |  |  |  |
Net operating loss carry forwards |  | $ 1,915,000 | $ 5,726,000 |
Operating loss carry-forwards utilization limit |  |  |  | $ 160,000
General business tax credits | $ 654,000 | $ 654,000 |  |
Minimum [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards, Expiration year | 2025 |  |  |
General business tax credits expiration year | 2034 |  |  |
Maximum [Member] |  |  |  |
Operating Loss Carryforwards [Line Items] |  |  |  |
Operating Loss Carryforwards, Expiration year | 2035 |  |  |
General business tax credits expiration year | 2036 |  |  |

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- Definition A credit or adjustment for government or taxing authority authorized decrease in taxes owed as a result of meeting certain tax policy conditions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585 + Details
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