Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2012	Jun. 30, 2011
Condensed Consolidated Balance Sheets [Abstract]
Preferred stock, no par value
Preferred stock, shares authorized	2,500,000	2,500,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, no par value
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	19,134,907	18,339,609
Treasury stock, shares	311,660	311,660

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

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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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Issuance value per share of no-par value, nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer); generally not indicative of the fair market value per share.

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Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased.

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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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