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CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
CURRENT ASSETS:
Accounts receivable, less allowance for discounts and doubtful accounts	$ 7,319	$ 6,779
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 2.00	$ 2.00
Common stock, authorized (in shares)	30,000,000	30,000,000
Common stock, issued (in shares)	23,936,036	23,936,036
Treasury stock, at cost (in shares)	1,049,180	1,276,044

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- Definition

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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Face amount or stated value of common stock per share; generally not indicative of the fair market value per share.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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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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