Note 10 - Other Operating Losses (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
Jun. 01, 2019	May 26, 2018	Jun. 01, 2019	May 26, 2018
Early Retirement Program, Benefits Payment Period			1 year
Early Retirement Program Expense	$ 0	$ 0	$ 835,000	$ 0
Proceeds from Sale of Property, Plant, and Equipment, Total			11,000	$ 2,463,000
Land and Building occupied by Spring, Texas Retail Store [Member]
Proceeds from Sale of Property, Plant, and Equipment, Total		2,463,000
Gain (Loss) on Disposition of Property Plant Equipment, Total		$ 165,000
Other Current Liabilities [Member]
Liability, Other Retirement Benefits	$ 733,000		$ 733,000

Period from the final day of each individual’s active employment during which benefits are paid.

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- Definition

Charges related to the early retirement package offered to certain eligible employees.

+ References

No definition available.

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- Definition

Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Amount of liability for retirement benefits, classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(15))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(15))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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- Definition

The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585

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