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Debt - Building Term Loan (Details) - USD ($)	Jun. 22, 2020	Mar. 17, 2020	Jun. 27, 2020	Jun. 29, 2019
Debt Instrument [Line Items]
Long-term Debt			$ 50,050,000	$ 58,485,000
Building Term Loan [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 18,000,000.0
Long-term Debt, Term	15 years
Debt Instrument, Interest Payment Term	15 years
Line of Credit Facility, Interest Rate at Period End			1.92%
Debt Instrument, Interest Rate, Effective Percentage		2.75%
Long-term Debt			$ 18,000,000.0
Building Term Loan [Member] | Interest Rate Contract [Member]
Debt Instrument [Line Items]
Derivative, notional amount			$ 18,000,000.0
Derivative, Floor Interest Rate		0.00%
Building Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.75%	1.75%

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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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Floor rate on an interest rate derivative such as an interest rate floor or collar. If market rates falls below the floor rate, a payment or receipt is triggered on the contract.

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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, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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

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