Note 8 - Stockholders' Equity (Details) - Stock-Based Compensation Activity (USD $)	12 Months Ended
May 26, 2013	May 27, 2012	May 29, 2011
Note 8 - Stockholders' Equity (Details) - Stock-Based Compensation Activity [Line Items]
Balance	449,643	640,976	770,311
Granted	(26,666)	(191,333)	(129,335)
Balance	422,977	449,643	640,976
Restricted Stock [Member]
Note 8 - Stockholders' Equity (Details) - Stock-Based Compensation Activity [Line Items]
Balance	348,166	415,085	431,605
Balance (in Dollars per share)	$ 5.93	$ 5.96	$ 6.35
Granted	(6,666)
Granted	6,666	47,833	32,335
Granted (in Dollars per share)	$ 9.01	$ 6.67	$ 6.00
Awarded/Exercised	(231,086)	(111,252)	(48,855)
Awarded/Exercised (in Dollars per share)	$ 5.74	$ 6.36	$ 9.48
Forfeited	(28,416)	(3,500)
Forfeited (in Dollars per share)	$ 6.20	$ 5.84
Balance	95,330	348,166	415,085
Balance (in Dollars per share)	$ 6.52	$ 5.93	$ 5.96
Stock Options [Member]
Note 8 - Stockholders' Equity (Details) - Stock-Based Compensation Activity [Line Items]
Balance	2,046,432	2,318,753	2,456,829
Balance (in Dollars per share)	$ 6.50	$ 6.34	$ 6.13
Granted	20,000	143,500	97,000
Granted (in Dollars per share)	$ 9.01	$ 6.67	$ 6.00
Awarded/Exercised	(671,563)	(371,727)	(217,076)
Awarded/Exercised (in Dollars per share)	$ 6.30	$ 5.40	$ 3.46
Forfeited	(44,977)	(5,657)	(18,000)
Forfeited (in Dollars per share)	$ 6.34	$ 5.76	$ 10.63
Expired	(10,000)	(38,437)
Expired (in Dollars per share)	$ 13.32	$ 8.23
Balance	1,339,892	2,046,432	2,318,753
Balance (in Dollars per share)	$ 6.58	$ 6.50	$ 6.34

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Number of non-option equity instruments exercised by participants.

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Number of shares reserved for issuance under non-option equity instrument agreements awarded that validly exist and are outstanding, including vested instruments.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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