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Earnings Per Common Share - Weighted Average Shares Outstanding Used in Computing Basic and Diluted Earnings Per Share (Detail) - shares	3 Months Ended
	Sep. 26, 2019	Sep. 27, 2018
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number of shares outstanding - basic	11,444,560	11,406,009
Effect of dilutive securities:
Stock options and restricted stock units	94,416	85,922
Weighted average number of shares outstanding - diluted	11,538,976	11,491,931

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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
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The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

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-Topic 260
-SubTopic 10
-Section 50
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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=117326831&loc=d3e1448-109256

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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-Section 50
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