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Note 11 - Income Taxes (Details) - Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (USD $)
In Thousands, unless otherwise specified
12 Months Ended
May 26, 2013
May 27, 2012
May 29, 2011
Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits [Abstract]      
Unrecognized tax benefits – beginning of the period $ 766 $ 760 $ 868
Gross increases – tax positions in prior period 103 1 280
Gross decreases – tax positions in prior period   (1) (310)
Gross increases – current-period tax positions 129 246 75
Lapse of statute of limitations   (240) (153)
Unrecognized tax benefits – end of the period $ 998 $ 766 $ 760