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Summary of Significant Accounting Policies (Policies) | 3 Months Ended
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Nov. 30, 2012
Summary of Significant Accounting Policies |
Basis of Presentation | Basis of Presentation—The Company’s unaudited interim condensed consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable provisions of the rules and regulations of the U.S. Securities and Exchange Commission (“SEC”) regarding interim financial reporting. Certain information and disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted as permitted by the rules and regulations of the SEC. Accordingly, these unaudited interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto contained in the Company’s Annual Report on Form 10-K filed with the SEC on December 13, 2012. The consolidated balance sheet as of August 31, 2012 included herein was derived from the audited consolidated financial statements as of that date. The unaudited interim condensed consolidated financial statements have been prepared on the same basis as the audited consolidated financial statements and include all adjustments, consisting only of normal recurring adjustments, necessary for the fair presentation of the Company’s statement of financial position as of November 30, 2012, and the related statements of operations, comprehensive loss, and cash flows for the three months ended November 30, 2012 and 201 1. The results for the three months ended November 30, 2012 are not necessarily indicative of the results to be expected for the year ending August 31, 2013.
Principles of Consolidation | Principles of Consolidation—The unaudited interim condensed consolidated financial statements include the accounts of SemiLEDs and its consolidated subsidiaries. All intercompany transactions and balances have been eliminated during consolidation.
Use of Estimates | Use of Estimates—The preparation of unaudited interim condensed consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the unaudited interim condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Significant items subject to such estimates and assumptions include the collectibility of accounts receivable, inventory net realizable values, realization of deferred tax assets, valuation of stock-based compensation expense, the useful lives of property, plant and equipment and intangible assets, the recoverability of the carrying amount of property, plant and equipment and intangible assets, the fair value of acquired tangible and intangible assets, income tax uncertainties, provision for potential litigation costs and other contingencies. Management bases its estimates on historical experience and also on assumptions that it believes are reasonable. Management assesses these estimates on a regular basis; however, actual results could differ materially from those estimates.
Concentration of Supply Risk | Concentration of Supply Risk—Some of the components and technologies used in the Company’s products are purchased and licensed from a limited number of sources and some of the Company’s products are produced by a limited number of contract manufacturers. The loss of any of these suppliers and contract manufacturers may cause the Company to incur transition costs to another supplier or contract manufacturer, result in delays in the manufacturing and delivery of the Company’s products, or cause it to carry excess or obsolete inventory. The Company relies on a limited number of such suppliers and contract manufacturers for the fulfillment of its customer orders. Any failure of such suppliers and contract manufacturers to perform could have an adverse effect upon the Company’s reputation and its ability to distribute its products or satisfy customers’ orders, which could adversely affect the Company’s business, financial position, results of operations and cash flows.
Concentration of Credit Risk | Concentration of Credit Risk—Financial instruments that subject the Company to concentrations of credit risk consist primarily of cash, cash equivalents, short-term investments and accounts receivable. The Company keeps its cash, cash equivalents and short-term investments in demand deposits, certificates of deposit and time deposits with prominent banks of high credit quality and invests only in money market funds. Deposits held with banks may exceed the amount of insurance provided on such deposits. As of November 30, 2012 and August 31, 2012, cash, cash equivalents and short-term investments of the Company consisted of the following (in thousands):
Cash, Cash Equivalents and Short-term Investments by Location |  | November 30, 2012 |  | August 31, 2012 |
United States: |  |  |  |  |
Denominated in U.S. dollars |  | $ | 18,700 |  | $ | 18,744 |
Taiwan: |  |  |  |  |
Denominated in U.S. dollars |  | 26,641 |  | 34,477 |
Denominated in New Taiwan dollars |  | 1,485 |  | 2,193 |
Denominated in other currencies |  | 208 |  | 235 |
China (including Hong Kong): |  |  |  |  |
Denominated in U.S. dollars |  | 376 |  | 376 |
Denominated in Renminbi |  | 252 |  | 33 |
Denominated in H.K. dollars |  | 1 |  | 1 |
Total cash, cash equivalents and short-term investments |  | $ | 47,663 |  | $ | 56,059 |
T he Company’s revenues are substantially derived from the sales of LED products. A significant portion of the Company’s revenues are derived from a limited number of customers and sales are concentrated in a few select markets. Management performs ongoing credit evaluations of its customers and generally does not require collateral on accounts receivable. Management evaluates the need to establish an allowance for doubtful accounts for estimated potential credit losses at each reporting period. The allowance for doubtful accounts is based on the management’s assessment of the collectibility of its customer accounts. Management regularly reviews the allowance by considering certain factors, such as historical experience, industry data, credit quality, age of accounts receivable balances and current economic conditions, that may affect a customer’s ability to pay. Net revenues generated from sales to the top ten customers represented 47% and 58% of the Company’s total net revenues for the three months ended November 30, 2012 and 2011, respectively. The Company’s revenues have been concentrated in a few select markets, including China, Taiwan, Russia and the United States. Net revenues generated from sales to customers in these markets, in the aggregate, accounted for 62% and 86% of the Company’s total net revenues for the three months ended November 30, 2012 and 2011, respectively.
Recently Adopted Accounting Pronouncement | Recently Adopted Accounting Pronouncement Presentation of comprehensive income—Effective September 1, 2012, the Company adopted Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) No. 2011-05, “Presentation of Comprehensive Income.” ASU 2011-05 increases the prominence of other comprehensive income in the financial statements. The Company has elected to present the components of net income and comprehensive income in two consecutive financial statements. The Company adopted ASU 2011-05 retrospectively for all periods presented. In December 2011, the FASB issued ASU No. 2011-12, “Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05,” which defers the effective date to present separate line items on the statement of operations for reclassification adjustments of items out of accumulated other comprehensive income into net income.

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- Definition Disclosure of accounting policy regarding (1) the principles it follows in consolidating or combining the separate financial statements, including the principles followed in determining the inclusion or exclusion of subsidiaries or other entities in the consolidated or combined financial statements and (2) its treatment of interests (for example, common stock, a partnership interest or other means of exerting influence) in other entities, for example consolidation or use of the equity or cost methods of accounting. 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