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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Shareholders' equity:
Common stock, par value
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	20,215,910	20,338,461
Common stock, shares outstanding	20,215,910	20,338,461

X

- 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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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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