Income Taxes: Other (Details) - USD ($)	12 Months Ended
Dec. 28, 2024	Dec. 30, 2023
Deferred tax assets, valuation allowance
Valuation allowance	$ 530,000	$ 350,000
Unrecognized Tax Benefits
Unrecognized tax benefits, including interest and penalties	1,663,400	1,345,000
Interest and penalties accrued related to unrecognized tax benefit	369,100	261,900
Activity related to the company's unrecognized tax benefits
Balance at the beginning of the period	1,083,100	871,300
Increases related to current year tax positions	283,100	277,600
Expiration of the statute of limitations for the assessment of taxes	(71,900)	(65,800)
Balance at the end of the period	$ 1,294,300	$ 1,083,100
Period over which various statutes of limitations are expected to expire	12 months

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482685/740-10-50-2

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- References

No definition available.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of unrecognized tax benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 217
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-URI https://asc.fasb.org/1943274/2147482663/740-10-55-217

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
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-Name Accounting Standards Codification
-Section 45
-Paragraph 10B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482525/740-10-45-10B

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
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Represents the period over which various statutes of limitations are expected to expire.

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No definition available.

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The amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns, including accruals as of the date of the statement of financial position, for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, which does not meet the minimum statutory threshold to avoid payment of penalties.

+ References

No definition available.

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