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Consolidated Balance Sheets (Parentheticals) - $ / shares	Sep. 30, 2019	Jun. 30, 2019
Statement of Financial Position [Abstract]
Preferred stock par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock authorized shares	10,000,000	10,000,000
Preferred stock issued shares	0	0
Preferred stock shares outstanding	0	0
Common stock par value (in dollars per share)	$ 0.01	$ 0.01
Common stock shares authorized	60,000,000	60,000,000
Common stock shares issued	17,818,145	17,984,105
Common stock shares outstanding	17,818,145	17,984,105

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Face amount or stated value per share of common stock.

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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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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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