CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Allowance	$ 915	$ 1,088
Capitalization, Long-term Debt and Equity [Abstract]
Common Stock, No Par Value	$ 0	$ 0
Common Stock, Shares Authorized	25,000,000	25,000,000
Common Stock, Shares, Issued	8,815,234	8,755,398
Common Stock, Shares, Outstanding	8,815,234	8,755,398

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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-Number 210

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Issuance value per share of no-par value common stock; generally not indicative of the fair market value per share.

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-Name Statement of Financial Accounting Standard (FAS)

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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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