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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 29, 2018	Dec. 31, 2017
Treasury stock, shares	6,665,398	6,665,398
Nonvoting Common Stock [Member]
Common Stock, par value per share	$ 1	$ 1
Common Stock, shares authorized	50,000	50,000
Common Stock [Member]
Common Stock, par value per share	$ 1	$ 1
Common Stock, shares authorized	40,000,000	40,000,000
Common Stock, shares issued	24,123,418	24,092,488
Common Stock, shares outstanding	17,458,020	17,427,090

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- Definition

Face amount or stated value per share of common stock.

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-SubTopic 10
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The maximum number of common shares permitted to be issued by an entity's charter and bylaws.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

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