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Note 8 - Stockholders' Equity (Details) - Summary of Activity Relating to Unvested Stock Option Grants and RSUs (USD $)	12 Months Ended
	May 26, 2013	May 27, 2012	May 29, 2011	May 30, 2010
Note 8 - Stockholders' Equity (Details) - Summary of Activity Relating to Unvested Stock Option Grants and RSUs [Line Items]
Granted (in Dollars per share)	$ 3.57	$ 2.65	$ 2.42
Granted	26,666	191,333	129,335
Stock Options [Member]
Note 8 - Stockholders' Equity (Details) - Summary of Activity Relating to Unvested Stock Option Grants and RSUs [Line Items]
Balance	76,958	425,870
Balance (in Dollars per share)	$ 2.29	$ 2.43
Granted	20,000	143,500	97,000
Granted (in Dollars per share)	$ 3.57
Vested/Awarded	(323,935)
Vested/Awarded (in Dollars per share)	$ 2.87
Forfeited	(44,977)
Restricted Stock [Member]
Note 8 - Stockholders' Equity (Details) - Summary of Activity Relating to Unvested Stock Option Grants and RSUs [Line Items]
Balance	95,330	348,166
Balance (in Dollars per share)	$ 6.52	$ 5.93	$ 5.96	$ 6.35
Granted	6,666
Granted (in Dollars per share)	$ 9.01	$ 6.67	$ 6.00
Vested/Awarded	(231,086)
Vested/Awarded (in Dollars per share)	$ 5.74
Forfeited	(28,416)
Forfeited (in Dollars per share)	$ 6.20	$ 5.84

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