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Note 9 - Income Taxes (Details Textual) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2017 | Oct. 01, 2016
Deferred Tax Liabilities, Net, Noncurrent | $ 8,103,000 | $ 5,472,000
Deferred Tax Assets, Valuation Allowance | 251,000 | $ 280,000
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | (29,000) |
State and Local Jurisdiction [Member] |  |
Operating Loss Carryforwards | 7,400,000 |
Deferred Tax Assets, Tax Credit Carryforwards | $ 46,000 |
State and Local Jurisdiction [Member] | Earliest Tax Year [Member] |  |
Operating Loss Carryforwards Expiration Date 1 | 2018 |
Tax Credit Carryforward, Expiration Date 1 | 2019 |
State and Local Jurisdiction [Member] | Latest Tax Year [Member] |  |
Operating Loss Carryforwards Expiration Date 1 | 2031 |
Tax Credit Carryforward, Expiration Date 1 | 2020 |

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- Definition Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
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