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Earnings Per Share (Reconciliation Of Denominator And Number Of Antidilutive Common Share Awards Not Included In Diluted Earnings Per Share Calculation) (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Oct. 01, 2016	Jun. 30, 2018	Jul. 01, 2017	Jul. 02, 2016
Earnings Per Share [Abstract]
Net income (loss)	$ (2,177)	$ 644	$ (224)	$ 432	$ 1,336	$ 961	$ 1,528	$ 1,792	$ (1,325)	$ 5,617	$ 6,533
Weighted average shares outstanding– basic	10,760	10,760	10,760	10,760	10,760	10,759	10,758	10,748	10,760	10,756	10,710
Effect of dilutive common stock awards									0	161	568
Weighted average shares outstanding – diluted	10,760	10,760	10,760	10,760	10,856	10,957	10,968	10,922	10,760	10,917	11,278
Earnings per share – basic (in dollars per share)	$ (0.20)	$ 0.06	$ (0.02)	$ 0.04	$ 0.12	$ 0.09	$ 0.14	$ 0.17	$ (0.12)	$ 0.52	$ 0.61
Earnings per share – diluted (in dollars per share)	$ (0.20)	$ 0.06	$ (0.02)	$ 0.04	$ 0.12	$ 0.09	$ 0.14	$ 0.16	$ (0.12)	$ 0.51	$ 0.58
Antidilutive SARs not included in diluted earnings per share									0	892	442

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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