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Note 16 - Employee Benefit Plans (Details Textual) - USD ($) | 3 Months Ended
--- | ---
Apr. 01, 2018 | Apr. 02, 2017
Operating Income (Loss), Total | $ (1,626,000) | $ (4,977,000)
Other Nonoperating Income (Expense), Total | $ (84,000) | (1,848,000)
Accounting Standards Update 2017-07 [Member] |  |
Operating Income (Loss), Total |  | 156,000
Other Nonoperating Income (Expense), Total |  | $ (156,000)

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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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