Condensed Consolidated Balance Sheets (Parenthetical) (Unaudited) (USD $)	Mar. 31, 2013	Dec. 31, 2012
Condensed Consolidated Balance Sheets [Abstract]
Common stock, no par value
Common stock, shares authorized	6,500,000	6,500,000
Common stock, shares issued	5,200,000	5,200,000
Common stock, shares outstanding	5,200,000	5,200,000
Treasury stock, shares	519,902	515,942
Unearned stock awards, shares	30,210	30,670

Unearned stock awards, shares.

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- Definition

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

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-Publisher FASB

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- Definition

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

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- Definition

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.

+ References

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- Definition

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

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-Topic 505

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-Publisher AICPA

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- Definition

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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