Note 9 - Line of Credit (Details Textual) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021	Oct. 18, 2019
Long-Term Line of Credit, Noncurrent	$ 8,783	$ 14,151	$ 11,890
Citizens Bank of Pennsylvania [Member] \| Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity				$ 45,000
Debt Instrument, Interest Rate, Effective Percentage	2.20%	2.00%	2.70%
Debt Instrument, Interest Rate During Period	5.20%
Long-Term Line of Credit, Noncurrent	$ 8,800	$ 14,200	$ 11,900
Letters of Credit Outstanding, Amount	1,900	$ 1,900	$ 1,900
Line of Credit Facility, Remaining Borrowing Capacity	$ 34,300

The average effective interest rate during the reporting period.

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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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