Accounting Policies, by Policy (Policies)

3 Months Ended

Mar. 31, 2013

Consolidation, Policy [Policy Text Block]

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, Policy [Policy Text Block]

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.