Note 20. Quarterly Financial Information (Unaudited) - Quarterly Financial Information (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Net Sales	$ 290,108	$ 284,414	$ 296,904	$ 270,635	$ 282,823	$ 314,466	$ 310,632	$ 294,676	$ 1,142,061	$ 1,202,597	$ 1,122,808
Gross Profit	58,026	50,639	54,320	46,970	47,178	50,691	49,576	47,147	209,955	194,592	176,533
Restructuring Expense	930	895	1,480	113	456	68	368	117	3,418	1,009	2,051
Net Income (Loss)	$ 6,077	$ 2,506	$ 3,197	$ (146)	$ 284	$ 3,306	$ 876	$ 456	$ 11,634	$ 4,922	$ 10,803
Class A Common Stock
Basic Earnings (Loss) Per Share	$ 0.16	$ 0.06	$ 0.08	$ (0.01)	$ 0.00	$ 0.08	$ 0.02	$ 0.01	$ 0.29	$ 0.12	$ 0.27
Diluted Earnings (Loss) Per Share	$ 0.16	$ 0.06	$ 0.08	$ (0.01)	$ 0.00	$ 0.08	$ 0.02	$ 0.01	$ 0.29	$ 0.12	$ 0.27
Class B Common Stock
Basic Earnings (Loss) Per Share	$ 0.16	$ 0.07	$ 0.09	$ 0.00	$ 0.01	$ 0.09	$ 0.02	$ 0.01	$ 0.31	$ 0.14	$ 0.29
Diluted Earnings (Loss) Per Share	$ 0.16	$ 0.07	$ 0.09	$ 0.00	$ 0.01	$ 0.09	$ 0.02	$ 0.01	$ 0.31	$ 0.14	$ 0.29

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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-Name Regulation S-X (SX)

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-Publisher FASB

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 8: http://www.xbrl.org/2003/role/presentationRef

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 20

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 19

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6519514

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 20

-Article 9

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Net Income

-URI http://asc.fasb.org/extlink&oid=6518256

Reference 9: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 87-21

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Reference 10: http://www.xbrl.org/2003/role/presentationRef

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Reference 11: http://www.xbrl.org/2003/role/presentationRef

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Reference 12: http://www.xbrl.org/2003/role/presentationRef

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Reference 13: http://www.xbrl.org/2003/role/presentationRef

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-Topic 220

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Reference 14: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph A7

-Appendix A

Reference 15: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph 38

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Accounting Research Bulletin (ARB)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Amount charged against earnings in the period for incurred and estimated costs associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, excluding asset retirement obligations.

+ References+ Details