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Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) - USD ($)
$ in Thousands
Jun. 26, 2016
Dec. 31, 2015
Trade accounts receivable, allowance for doubtful accounts $ 293 $ 300
Preferred stock, par value (in dollars per share) $ 0.10 $ 0.10
Preferred stock, shares authorized (in shares) 1,000,000 1,000,000
Preferred stock, shares issued (in shares)
Common stock, par value (in dollars per share) $ 0.10 $ 0.10
Common stock, shares authorized (in shares) 40,000,000 40,000,000
Common stock, shares issued (in shares) 19,201,556 19,181,815
Common stock, shares outstanding (in shares) 15,191,922 15,322,155
Treasury stock, shares (in shares) 4,009,564 3,859,660