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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)

X

- Definition

The net result for the period of deducting operating expenses from operating revenues.

+ References

No definition available.

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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

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