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Leases - Operating Lease Assets And Liabilities (Detail) - USD ($) $ in Thousands	Sep. 24, 2020	Jun. 25, 2020	Sep. 26, 2019
Assets
Operating lease right-of-use assets	$ 4,201	$ 4,351	$ 5,170
Noncurrent
Operating Lease, Liability, Noncurrent	2,807	2,990	3,774
Total lease liabilities	4,212	4,366	5,164
Operating LeaseRight Of UseAssets [Member]
Assets
Operating lease right-of-use assets	4,201	4,351	5,170
Other Liabilities [Member]
Current
Operating Lease, Liability, Current	1,405	1,376	1,390
Non Current Operating Lease Liabilities [Member]
Noncurrent
Operating Lease, Liability, Noncurrent	$ 2,807	$ 2,990	$ 3,774

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Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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Amount of lessee's right to use underlying asset under operating lease.

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-Name Accounting Standards Codification
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-SubTopic 20
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