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Note 9 - Earnings Per Common Share (Details Textual)		3 Months Ended		6 Months Ended
	Feb. 25, 2021	Mar. 28, 2021 shares	Mar. 29, 2020 shares	Mar. 28, 2021 shares	Mar. 29, 2020 shares
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares)		600,000	695,430	600,000	639,397
Reverse Stock Split [Member]
Stockholders' Equity Note, Stock Split, Conversion Ratio	10

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SAB TOPIC 4.C)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187143-122770

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