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Note 5 - Diluted Net Income Per Share - Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 25, 2018	Nov. 26, 2017	Nov. 25, 2018	Nov. 26, 2017
Numerator:
Net (loss) income applicable to Common Stockholders	$ (584)	$ 487	$ (395)	$ 2,633
Denominator:
Weighted average shares for basic net income per share (in shares)	27,764	27,518	27,751	27,512
Effect of dilutive securities:
Stock options and restricted stock units (in shares)		357		354
Weighted average shares for diluted net income per share (in shares)	27,764	27,875	27,751	27,866
Diluted net (loss) income per share (in dollars per share)	$ (0.02)	$ 0.02	$ (0.01)	$ 0.10

X

- Definition

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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