Note 4 - Balance Sheet Components (Details Textual) - USD ($) $ in Thousands	12 Months Ended
Jan. 01, 2023	Jan. 02, 2022	Jan. 03, 2021
Depreciation, Amortization and Accretion, Net, Total	$ 710	$ 626	$ 817
Interest Costs Capitalized	0	0	0
Capitalized Computer Software, Amortization	$ 400	$ 500	$ 100

Amount of expense for amortization of capitalized computer software costs.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 985
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128462-111756

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-Publisher FASB
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-Section 50
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-URI https://asc.fasb.org/extlink&oid=6501960&loc=d3e128487-111756

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- Definition

The aggregate net amount of depreciation, amortization, and accretion recognized during an accounting period. As a noncash item, the net amount is added back to net income when calculating cash provided by or used in operations using the indirect method.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
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- Definition

Amount of interest capitalized during the period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
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