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Note 8. Stock Compensation Plans - Performance Shares Textuals (Details) - Jun. 30, 2015 - Performance Shares - USD ($) $ in Millions	Total
Share-based Compensation Arrangements
Performance Shares, Unrecognized Compensation Cost	$ 5.9
Performance Shares, Average Vesting Period for Unrecognized Compensation Cost	1 year 7 months
Performance Shares, Shares Vested	0
Minimum
Share-based Compensation Arrangements
Share Based Compensation Arrangement By Share Based Payment Award Contractual Life	1 year
Maximum
Share-based Compensation Arrangements
Share Based Compensation Arrangement By Share Based Payment Award Contractual Life	5 years

X

- Definition

Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (i)



-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 718



-SubTopic 10



-Section 50



-Paragraph 2



-Subparagraph (c)(2)(iii)(2)



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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

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