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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		6 Months Ended
	Dec. 26, 2019	Dec. 27, 2018	Dec. 26, 2019	Dec. 27, 2018
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average number of shares outstanding - basic	11,458,524	11,425,566	11,451,542	11,415,787
Effect of dilutive securities:
Stock options and restricted stock units	66,863	53,865	80,640	69,894
Weighted average number of shares outstanding - diluted	11,525,387	11,479,431	11,532,182	11,485,681

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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.

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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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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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-Topic 260
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