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Note 11 - Treasury Stock Transactions (Details Textual) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jul. 02, 2022	Jul. 03, 2021	Nov. 12, 2021	Jan. 13, 2021
Treasury Stock, Shares, Acquired (in shares)	406,480	842,055
Treasury Stock Acquired, Average Cost Per Share (in dollars per share)	$ 6.84	$ 3.14
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 7.3
Maximum [Member]
Stock Repurchase Program, Authorized Amount			$ 19.1	$ 7.5

X

- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

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X

- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

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X

- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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