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Note 10 - Income Taxes - Deferred Tax Asset and Liability Components (Details) - USD ($) | Oct. 01, 2016 | Oct. 03, 2015
--- | --- | ---
Defined benefit plans | $ 3,497,000 | $ 3,755,000
Accrued expenses and asset reserves | 2,942,000 | 2,596,000
Stock-based compensation | 1,652,000 | 2,054,000
State net operating loss carryforwards and tax credits | 354,000 | 658,000
Goodwill, amortizable for tax purposes | 277,000 | 559,000
Valuation allowance | (280,000) | (492,000)
Deferred tax assets | 8,442,000 | 9,130,000
Plant and equipment | (12,915,000) | (12,285,000)
Prepaid insurance and other reserves | (999,000) | (1,410,000)
Deferred tax liabilities | (13,914,000) | (13,695,000)
Net deferred tax liability | $ (5,472,000) | $ (4,565,000)

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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. + References Reference 1: 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=65882285&loc=d3e32632-109319 Reference 2: 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=65882285&loc=d3e32621-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from pension benefits. + References Reference 1: 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=65882285&loc=d3e32632-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 25 -Paragraph 20 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68052875&loc=d3e28680-109314 Reference 3: 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=65882285&loc=d3e32621-109319 + Details
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