Annual report pursuant to Section 13 and 15(d)

Note 11 - Earnings per common share (Detail)

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Note 11 - Earnings per common share (Detail) (USD $)
12 Months Ended
Dec. 30, 2012
Jan. 01, 2012
Jan. 02, 2011
Treasury Stock Method, Dilutive Options Average Share Price Used (in Dollars per share) $ 3.07 $ 2.38 $ 2.91
Stock Options [Member]
     
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 620,150 263,150 231,173