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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		9 Months Ended
	Mar. 28, 2019	Mar. 29, 2018	Mar. 28, 2019	Mar. 29, 2018
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number of shares outstanding - basic	11,444,560	11,399,492	11,425,378	11,375,437
Effect of dilutive securities:
Stock options and restricted stock units	64,333	54,056	68,040	65,234
Weighted average number of shares outstanding - diluted	11,508,893	11,453,548	11,493,418	11,440,671

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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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
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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.

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-Topic 260
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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.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
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