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Note 12 - Fair Value of Financial Instruments (Tables) | 12 Months Ended
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Sep. 29, 2019
Notes Tables |
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] |
|  | 2019 |  |  | 2018 |  |  | 2017 |
Volatility (Percent) |  |  | 48 |  |  |  | 31 |  |  |  | 37 |
Risk-free interest rate (Percent) |  |  | 1.58 |  |  |  | 2.91 |  |  |  | 1.81 |
Expected term (Years) |  |  | 2.5 |  |  |  | 3.5 |  |  |  | 4.5 |
Estimated fair value (Dollars) |  |  | 0.20 |  |  |  | 0.30 |  |  |  | 0.26 |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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