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Amount of borrowing base under line of credit.

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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.

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The amount of working capital.

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of the fee for available but unused credit capacity under the credit facility.

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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.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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Long-Term Debt - Additional Information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Mar. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Aug. 01, 2023	Jun. 29, 2023	Mar. 31, 2022	Dec. 31, 2021	Jul. 09, 2021	Jun. 28, 2018
Debt Instrument
Outstanding balance		$ 939,000	$ 501,000
Total shareholders' equity		33,619,000	35,112,000			$ 35,738,000	$ 35,366,000
Working capital		$ 24,278,000
Line of credit (LOC)
Debt Instrument
Percentage of floating interest rate payable		8.88%
Outstanding balance		$ 939,000	0
Line of credit (LOC) \| BSBY
Debt Instrument
Spread on variable rate		4.00%
Equipment note obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.7955% - 1.8350% as of March 31, 2023)(B)
Debt Instrument
Outstanding balance		$ 0	491,000
Loan line of credit								$ 1,000,000
Lease term for equipment covered by lease line of credit		60 months
Equipment note obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.7955% - 1.8350% as of March 31, 2023)(B) \| Maximum [Member]
Debt Instrument
Percentage of floating interest rate payable		1.835%
Equipment note obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.7955% - 1.8350% as of March 31, 2023)(B) \| Minimum [Member]
Debt Instrument
Percentage of floating interest rate payable		1.7955%
Equipment financing lease obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.8227% - 1.8690% at time of funding)
Debt Instrument
Outstanding balance		$ 0	10,000
Lease line of credit									$ 1,000,000
Lease term for equipment covered by lease line of credit		60 months
Equipment financing lease obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.8227% - 1.8690% at time of funding) \| Maximum [Member]
Debt Instrument
Percentage of floating interest rate payable		1.869%
Equipment financing lease obligations; Interest rate fixed for term of each funding based upon the Lender's lease pricing at time of funding. (Interest rate/factor 1.8227% - 1.8690% at time of funding) \| Minimum [Member]
Debt Instrument
Percentage of floating interest rate payable		1.8227%
Borrowing Base LOC
Debt Instrument
Maximum availability	$ 5,000,000
Borrowings base amount	$ 6,400,000
Percentage of floating interest rate payable	8.88%
Amount advanced for pledged deposit	$ 500,000
Additional fee	$ 300,000
Outstanding balance		$ 939,000	0
Borrowing Base LOC \| Subsequent Event
Debt Instrument
Maximum availability				$ 1,000,000	$ 3,900,000
Borrowing Base LOC \| BSBY
Debt Instrument
Spread on variable rate	4.00%
Equipment loans
Debt Instrument
Repayment of outstanding loans			$ 501,000