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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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Note 1 - Organization, Basis of Presentation, and Summary of Significant Accounting Policies - Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended												12 Months Ended
	May 28, 2017	Feb. 26, 2017	Nov. 27, 2016	Aug. 28, 2016	May 29, 2016	Feb. 28, 2016	Nov. 29, 2015	Aug. 30, 2015	May 31, 2015	Mar. 01, 2015	Nov. 30, 2014	Aug. 31, 2014	May 28, 2017	May 29, 2016	May 31, 2015
Numerator:
Net income (loss)	$ 2,452	$ 3,500	$ 1,326	$ 3,312	$ 4,729	$ (21,190)	$ 1,868	$ 2,952	$ 4,196	$ 3,772	$ 3,223	$ 2,353	$ 10,590	$ (11,641)	$ 13,544
Denominator:
Weighted average shares for basic net income (loss) per share (in shares)													27,276	27,044	26,884
Effect of dilutive securities:
Stock options and restricted stock units (in shares)													376		452
Weighted average shares for diluted net income (loss) per share (in shares)													27,652	27,044	27,336
Net income (loss) per diluted share (in dollars per share)	$ 0.09	$ 0.13	$ 0.05	$ 0.12	$ 0.17	$ (0.78)	$ 0.07	$ 0.11	$ 0.15	$ 0.14	$ 0.12	$ 0.09	$ 0.38	$ (0.43)	$ 0.50