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CONSOLIDATED CONDENSED BALANCE SHEET (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 21, 2015
Dec. 27, 2014
Mar. 22, 2014
Receivables allowance (in dollars) $ 864us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 900us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 1,127us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, shares authorized 1,000,000us-gaap_PreferredStockSharesAuthorized 1,000,000us-gaap_PreferredStockSharesAuthorized 1,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, shares issued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Common stock, shares authorized 30,000,000us-gaap_CommonStockSharesAuthorized 30,000,000us-gaap_CommonStockSharesAuthorized 30,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued 14,025,184us-gaap_CommonStockSharesIssued 13,998,090us-gaap_CommonStockSharesIssued 13,786,966us-gaap_CommonStockSharesIssued
Common stock, shares outstanding 14,025,184us-gaap_CommonStockSharesOutstanding 13,998,090us-gaap_CommonStockSharesOutstanding 13,786,966us-gaap_CommonStockSharesOutstanding