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Note 11 - Share Based Compensation (Detail) - Transactions related to all stock options (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended
Mar. 30, 2013
Options outstanding 307,400
Options outstanding weighted average exercise price (in Dollars per share) $ 5.34
Options exercisable as of March 30, 2013 242,400
Options exercisable as of March 30, 2013 (in Dollars per share) $ 5.33
Intrinsic value of outstanding stock options as of March 30, 2013 (in Dollars) $ 333
Intrinsic value of stock options exercised for the thirteen week period ended March 30, 2013 (in Dollars per share) $ 10
Options granted 5,000
Options granted (in Dollars per share) $ 5.78
Options exercised 7,000
Options exercised (in Dollars per share) $ 4.40
Options forfeited/cancelled 8,000
Options forfeited/cancelled (in Dollars per share) $ 5.16
Options outstanding 297,400
Options outstanding weighted average exercise price (in Dollars per share) $ 5.37
Minimum [Member]
  
Options outstanding 2.50
Maximum [Member]
  
Options outstanding 9.81