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Note 10 - Per Share Data - Unissued Shares of Common Stock Were Reserved for the Following Purposes (Details) - shares	Jan. 03, 2026	Dec. 28, 2024
Future grants of options or shares available (in shares)	1,248,902	295,680
Shares reserved for employee stock purchase plan (in shares)	216,574	252,119
Total (in shares)	1,926,670	1,137,220
Time-based Restricted Stock Units [Member]
Restricted stock units outstanding (in shares)	179,037	289,421
Performance-based Restricted Stock Units [Member]
Restricted stock units outstanding (in shares)	282,157	300,000

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+ References

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Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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