Note 1. Basis of Presentation	3 Months Ended
Mar. 31, 2013
Basis of Presentation and Significant Accounting Policies [Text Block]	1. Basis of Presentation The unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC). Accordingly, they do not include all of the information and notes required by U.S. GAAP for annual financial statements. In the opinion of management, the unaudited interim financial statements reflect all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented. The December 30, 2012 condensed consolidated balance sheet data were derived from audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2012, but does not include all disclosures required by U.S. GAAP for annual periods. These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2012 as filed with the SEC on February 25, 2013. The results of operations for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year. The Company operates on a 52- to 53-week fiscal year ending on the last Sunday in December. Fiscal 2013 and fiscal 2012 are comprised of 52-week and 53-week periods, respectively. Principles of Consolidation The unaudited condensed consolidated financial statements include the accounts of the Company and all of its wholly-owned subsidiaries, and all intercompany accounts and transactions have been eliminated. The fiscal 2012 financial statements also include a variable interest entity (VIE) for which the Company was the primary beneficiary through March 31, 2012. The VIE’s financial statements were not significant to the Company’s condensed consolidated financial statements for the periods presented. On April 1, 2012, the Company acquired substantially all assets and assumed certain liabilities of the VIE under an asset purchase agreement and the entity ceased to be a VIE as of the acquisition date. Use of Estimates The preparation of the Company’s consolidated financial statements and disclosures in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of commitments and contingencies and the reported amounts of revenues and expenses during the reporting periods. Estimates are used to account for the fair value of certain marketable securities, revenue adjustments, the allowance for doubtful accounts, inventory reserves, valuation of intangible assets, impairment of long-lived assets, legal contingencies, income taxes, stock-based compensation expenses, the fair value of long-term debt, and product warranties. Actual results may differ from those estimates, and such differences may be material to the Company’s condensed consolidated financial statements.

Note 1. Basis of Presentation

3 Months Ended

Mar. 31, 2013

Basis of Presentation and Significant Accounting Policies [Text Block]

1. Basis of Presentation

The unaudited interim condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) for interim financial information and pursuant to the rules and regulations of the U.S. Securities and Exchange Commission (SEC). Accordingly, they do not include all of the information and notes required by U.S. GAAP for annual financial statements. In the opinion of management, the unaudited interim financial statements reflect all adjustments consisting of normal and recurring entries considered necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented. The December 30, 2012 condensed consolidated balance sheet data were derived from audited consolidated financial statements included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2012, but does not include all disclosures required by U.S. GAAP for annual periods.

These condensed consolidated financial statements and related notes are unaudited and should be read in conjunction with the Company’s audited financial statements and related notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 30, 2012 as filed with the SEC on February 25, 2013. The results of operations for the three months ended March 31, 2013 are not necessarily indicative of the results that may be expected for any other interim period or for the full fiscal year.

The Company operates on a 52- to 53-week fiscal year ending on the last Sunday in December. Fiscal 2013 and fiscal 2012 are comprised of 52-week and 53-week periods, respectively.

Principles of Consolidation

The unaudited condensed consolidated financial statements include the accounts of the Company and all of its wholly-owned subsidiaries, and all intercompany accounts and transactions have been eliminated. The fiscal 2012 financial statements also include a variable interest entity (VIE) for which the Company was the primary beneficiary through March 31, 2012. The VIE’s financial statements were not significant to the Company’s condensed consolidated financial statements for the periods presented. On April 1, 2012, the Company acquired substantially all assets and assumed certain liabilities of the VIE under an asset purchase agreement and the entity ceased to be a VIE as of the acquisition date.

Use of Estimates

The preparation of the Company’s consolidated financial statements and disclosures in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of commitments and contingencies and the reported amounts of revenues and expenses during the reporting periods. Estimates are used to account for the fair value of certain marketable securities, revenue adjustments, the allowance for doubtful accounts, inventory reserves, valuation of intangible assets, impairment of long-lived assets, legal contingencies, income taxes, stock-based compensation expenses, the fair value of long-term debt, and product warranties. Actual results may differ from those estimates, and such differences may be material to the Company’s condensed consolidated financial statements.