Note 7. Stock Compensation Plans - Stock Option Activity (Details) (Stock Options, USD $)	12 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Stock Options
Share-based Compensation Arrangements, Stock Options [Roll Forward]
Stock Options, Shares Outstanding, Beginning of Period	619,585
Stock Options, Shares Granted	0	0	0
Stock Options, Shares Exercised	0	0	0
Stock Options, Shares Forfeited	1,500
Stock Options, Shares Expired	139,585
Stock Options, Shares Outstanding, End of Period	478,500	619,585
Stock Options, Shares Exercisable	478,500
Stock Options, Weighted Average Exercise Price of Shares Outstanding, Beginning of Period	$ 15.10
Stock Options, Weighted Average Exercise Price of Shares Granted	$ 0.00
Stock Options, Weighted Average Exercise Price of Shares Exercised	$ 0.00
Stock Options, Weighted Average Exercise Price of Shares Forfeited	$ 15.06
Stock Options, Weighted Average Exercise Price of Shares Expired	$ 15.24
Stock Options, Weighted Average Exercise Price of Shares Outstanding, End of Period	$ 15.06	$ 15.10
Stock Options, Weighted Average Exercise Price of Shares Exercisable	$ 15.06
Stock Options, Aggregate Intrinsic Value of Shares Outstanding	$ 0
Stock Options, Aggregate Intrinsic Value of Shares Exercisable	$ 0
Stock Options Outstanding, Weighted Average Remaining Contractual Life	4 months
Stock Options, Exercisable, Weighted Average Remaining Contractual Life	4 months

Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options of the plan that expired.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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Number of share options (or share units) exercised during the current period.

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