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The Company and Summary of Significant Accounting Policies | 12 Months Ended
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Dec. 31, 2012
The Company and Summary of Significant Accounting Policies [Abstract] |
The Company and Summary of Significant Accounting Policies | Note 1. The Company and Summary of Significant Accounting Policies The Company AXT, Inc. ("AXT", "we," "us," and "our" refer to AXT, Inc. and all of its subsidiaries) designs, develops, manufactures and distributes high-performance compound semiconductor substrates. Our substrate products are used primarily in wireless communications, lighting display applications, and fiber optic communications. We believe our vertical gradient freeze, or VGF, technique for manufacturing semiconductor substrates provides significant benefits over other methods and enabled us to become a leading manufacturer of such substrates. We pioneered the commercial use of VGF technology to manufacture gallium arsenide (GaAs) substrates and subsequently used VGF technology to manufacture substrates from indium phosphide (InP), and germanium (Ge). We also manufacture and sell raw materials related to our substrate business through our joint ventures located in China. These joint ventures produce products including 99.99% pure gallium (4N Ga), high purity gallium, arsenic, and germanium, germanium dioxide, pyrolitic boron nitride (pBN) crucibles, and boron oxide (B2O3). AXT's ownership interest in these entities ranges from 20 percent to 83 percent. We consolidate the joint ventures in which we own a majority or controlling share and employ equity accounting for the joint ventures in which we have a smaller ownership interest. We purchase the materials produced by these ventures for our own use and sell other portions of their production to third parties. Principles of Consolidation The consolidated financial statements include the accounts of AXT, our wholly-owned subsidiary, Beijing Tongmei Xtal Technology Co, Ltd., and our majority‑owned subsidiaries, Beijing JiYa Semiconductor Material Co., Ltd, Nanjing Jin Mei Gallium Co., Ltd and Beijing BoYu Semiconductor Vessel Craftwork Technology Co., Ltd. All significant inter-company accounts and transactions have been eliminated. Investments in business entities in which we do not have control, but have the ability to exercise significant influence over operating and financial policies (generally 20-50% ownership), are accounted for by the equity method. For majority-owned subsidiaries, we reflect the noncontrolling interest of the portion we do not own on our consolidated balance sheets in stockholders' equity and in our consolidated statements of operations. Reclassification Certain prior year amounts in our consolidated statements of operations have been reclassified to conform to the current year presentation. We reclassified $741,000 and $259,000 from "other income (expense), net" to "equity in earnings of unconsolidated joint ventures" for the years ended December 31, 2011 and 2010, respectively. Use of Estimates The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates, judgments and assumptions. We believe that the estimates, judgments, and assumptions upon which it relies are reasonable based on information available at the time that these estimates, judgments, and assumptions are made. These estimates, judgments, and assumptions can affect the reported amounts of assets and liabilities as of the date of the financial statements as well as the reported amounts of revenues and expenses during the periods presented. To the extent there are material differences between these estimates and actual results, our consolidated financial statements would be affected. Fair Value of Financial Instruments The carrying amounts of certain of our financial instruments including cash and cash equivalents, accounts receivable, short-term investments and long-term investments, accounts payable and accrued liabilities approximate fair value due to their short maturities. Certain cash equivalents and investments are required to be adjusted to fair value on a recurring basis. See Note 2. Fair Value of Investments ASC topic 820, Fair value measurement ("ASC 820") establishes three levels of inputs that may be used to measure fair value. Level 1 instruments represent quoted prices in active markets. Therefore, determining fair value for Level 1 instruments does not require significant management judgment, and the estimation is not difficult. Level 2 instruments include observable inputs other than Level 1 prices, such as quoted prices for identical instruments in markets with insufficient volume or infrequent transactions (less active markets), issuer credit ratings, non-binding market consensus prices that can be corroborated with observable market data, model-derived valuations in which all significant inputs are observable or can be derived principally from or corroborated with observable market data for substantially the full term of the assets or liabilities, or quoted prices for similar assets or liabilities. These Level 2 instruments require more management judgment and subjectivity compared to Level 1 instruments, including:
| · | Determining which instruments are most similar to the instrument being priced requires management to identify a sample of similar securities based on the coupon rates, maturity, issuer, credit rating, and instrument type, and subjectively select an individual security or multiple securities that are deemed most similar to the security being priced.
| · | Determining which model-derived valuations to use in determining fair value requires management judgment. When observable market prices for identical securities or similar securities are not available, we price our marketable debt instruments using non-binding market consensus prices that are corroborated with observable market data or pricing models, such as discounted cash flow models, with all significant inputs derived from or corroborated with observable market data.
Level 3 instruments include unobservable inputs to the valuation methodology that are significant to the measurement of fair value of assets or liabilities. The determination of fair value for Level 3 instruments requires the most management judgment and subjectivity. As of December 31, 2012, we did not have any assets or liabilities without observable market values that would require a high level of judgment to determine fair value (Level 3 assets). Foreign Currency Translation The functional currencies of our Chinese subsidiaries are the local currencies. Transaction gains and losses resulting from transactions denominated in currencies other than the U.S. dollar or in the functional currencies of our subsidiaries are included in "other income (expense), net" for the periods presented. The assets and liabilities of the subsidiaries are translated at the rates of exchange on the balance sheet date. Revenue and expense items are translated at the average rate of exchange for the period. Gains and losses from foreign currency translation are included in o"ther comprehensive income (loss)" in consilidated statements of comprehensive income. Revenue Recognition We recognize revenue upon the shipment of our products to customers when:
| • | we have received a signed purchase order placed by our customers,
| • | the price is fixed or determinable,
| • | title and risk of ownership has transferred to our customers upon shipment from our dock, receipt at customer's dock, or removal from consignment inventory at customer's location,
| • | collection of resulting receivables is probable, and
| • | product returns are reasonably estimable.
We do not provide training, installation or commissioning services. Our terms and conditions of sale do not require customer acceptance. We assess the probability of collection based on a number of factors including past history with the customer and credit worthiness. We provide for future returns based on historical experience, current economic trends and changes in customer demand at the time revenue is recognized. Additionally, we do not provide discounts or other incentives to customers. We present our revenue net of any taxes assessed by any governmental authority. Accounting for Sales Taxes in Net Revenues We report sales taxes collected on sales of our products as a component of net revenues and as accrued liabilities on our consolidated balance sheets. The amount is immaterial for fiscal years 2012, 2011 and 2010. Risks and Concentration of Credit Risk Our business is very dependent on the semiconductor industry, which is highly cyclical and has historically experienced downturns as a result of economic changes, overcapacity, and technological advancements. Significant technological changes in the industry or customer requirements, or the emergence of competitive products with new capabilities or technologies, could adversely affect operating results. In addition, a significant portion of our revenues and net income is derived from international sales. Fluctuations of the United States dollar against foreign currencies and changes in local regulatory or economic conditions, particularly in an emerging market such as China, could adversely affect operating results. We depend on a single or limited number of suppliers for certain critical materials used in the production of our substrates, such as quartz tubing and polishing solutions. We generally purchase these materials through standard purchase orders and not pursuant to long-term supply contracts. Financial instruments that potentially subject us to concentration of credit risk consist primarily of cash equivalents, short-term investments, and trade accounts receivable. We invest primarily in money market accounts, commercial paper instruments, and investment grade securities with high quality financial institutions. The composition and maturities are regularly monitored by management. Such deposits are in excess of the amount of the insurance provided by the federal government on such deposits. We are exposed to credit risks in the event of default by the issuers to the extent of the amount recorded on the consolidated balance sheets. We perform ongoing credit evaluations of our customers' financial condition, and limit the amount of credit extended when deemed necessary, but generally do not require collateral. The credit risk in our accounts receivable is substantially mitigated by our credit evaluation process, reasonably short collection terms and the geographical dispersion of sales transactions. One customer accounted for 28% and 33% of our trade accounts receivable balance as of December 31, 2012 and 2011, respectively. One customer represented 17%, 18% and 19% of revenue for the years ended December 31, 2012, 2011 and 2010, respectively. Our top five customers represented 37%, 35% and 40% of revenue for the years ended December 31, 2012, 2011 and 2010, respectively. We expect that sales to a small number of customers will continue to comprise a significant portion of our revenue in the future. Cash and Cash Equivalents We classify our investments in debt and equity securities as available-for-sale securities as prescribed by ASC topic 320, Debt and Equity Securities ("ASC 320"). We consider investments in highly liquid instruments purchased with an original maturity of three months or less to be cash equivalents. Cash equivalents consist primarily of money market funds. Cash and cash equivalents are stated at cost, which approximates fair value. Short-Term and Long-Term Investments We classify our investments in debt and equity securities as available-for-sale securities in accordance with ASC topic 320, Investments - Debt and Equity Securities ("ASC 320"). Short-term and long-term investments are comprised of available-for-sale marketable debt securities, which consist primarily of certificates of deposit, U.S. government securities, and investment-grade corporate notes and bonds. These investments are reported at fair value as of the respective balance sheet dates with unrealized gains and losses included in accumulated other comprehensive income within stockholders' equity on the consolidated balance sheets. The amortized cost of securities is adjusted for amortization of premiums and accretion of discounts to maturity. Such amortization is included in "other income (expense), net" in the consolidated statements of operations. Realized gains and losses and declines in value judged to be other than temporary on available-for-sale securities are also included in "other income (expense), net" in the consolidated statements of operations. The cost of securities sold is based upon the specific identification method. Accounts Receivable and Allowance for Doubtful Accounts and Sales Returns Accounts receivable are recorded at the invoiced amount and are not interest bearing. We periodically review the likelihood of collection on our accounts receivable balances and provide an allowance for doubtful accounts receivable primarily based upon the age of these accounts. We evaluate receivables from U.S. customers in excess of 90 days and for receivables from customers located outside the U.S. in excess of 120 days and reserve allowance on the receivable balances if needed. We assess the probability of collection based on a number of factors, including the length of time a receivable balance has been outstanding, our past history with the customer and their credit worthiness. We exercise judgment when determining the adequacy of these reserves as we evaluate historical bad debt trends, general economic conditions in the United States and internationally, and changes in customer financial conditions. Uncollectible receivables are recorded as bad debt expense when all efforts to collect have been exhausted and recoveries are recognized when they are received. As of December 31, 2012, our accounts receivable balance was $17.9 million with no allowance for doubtful accounts accrued. As of December 31, 2011, our accounts receivable balance was $18.0 million with no allowance for doubtful accounts accrued. During 2011, we decreased this allowance for doubtful accounts by $99,000 primarily for improved collections worldwide. As of December 31, 2010, our accounts receivable balance was $23.1 million, which was net of an allowance for doubtful accounts of $99,000. During 2010, we decreased this allowance for doubtful accounts by $64,000 primarily for improved collections worldwide. No amounts have been written off. If actual uncollectible accounts differ substantially from our estimates, revisions to the estimated allowance for doubtful accounts would be required, which could have a material impact on our financial results for future periods. The allowance for sales returns is also deducted from gross accounts receivable. During 2012, we utilized $426,000 and charged an additional $547,000 resulting in the allowance for sales returns of $245,000 as of December 31, 2012. During 2011, we utilized $144,000 and reduced allowance of $194,000 resulting in the allowance for sales returns of $124,000 as of December 31, 2011. During 2010, we utilized $518,000 and charged an additional $124,000 from the beginning balance of $856,000, resulting in the allowance for sales returns of $462,000 as of December 31, 2010. Warranty Reserve Warranty reserve is based upon our claims experience during the prior twelve months. Warranty costs are accrued at the time revenue is recognized. As of December 31, 2012 and 2011, accrued product warranties totaled $588,000 and $1.0 million, respectively. The decrease in accrued product warranties is primarily attributable to decreased claims for quality issues experienced by some customers. If actual warranty costs differ substantially from our estimates, revisions to the estimated warranty liability would be required, which could have a material impact on our financial condition and results of operations for future periods. Inventories Inventories are stated at the lower of cost (approximated by standard cost) or market. Cost is determined using the weighted average cost method. Our inventory consists of raw materials as well as finished goods and work-in-process that include material, labor and manufacturing overhead costs. We routinely evaluate the levels of our inventory in light of current market conditions in order to identify excess and obsolete inventory, and we provide a valuation allowance for certain inventories based upon the age and quality of the product and the projections for sale of the completed products. Property, Plant and Equipment Property, plant and equipment are stated at cost less accumulated depreciation computed using the straight-line method over the estimated economic lives of the assets, which vary from 3 to 27.5 years. Leasehold improvements are amortized using the straight-line method over the shorter of the estimated useful life or the term of the lease. We generally depreciate computers, software, office equipment, furniture and fixtures over 3 years, automobiles over 5 years, leasehold and building improvements over 10 years, or lease term if shorter, and buildings over 27.5 years. Repairs and maintenance costs are expensed as incurred. Impairment of Long-Lived Assets We evaluate the recoverability of property, equipment and intangible assets in accordance with ASC topic 360, Property, Plant and Equipment ("ASC 360"). When events and circumstance indicate that long-lived assets may be impaired, our management compares the carrying value of the long-lived assets to the projection of future undiscounted cash flows attributable to such assets. In the event that the carrying value exceeds the future undiscounted cash flows, we record an impairment charge against income equal to the excess of the carrying value over the asset's fair value. Fair values are determined based on quoted market values, discounted cash flows or internal and external appraisals, as applicable. We did not recognize any impairment charges of long-lived assets in 2012, 2011 and 2010. Impairment of Investments All available-for-sale securities are periodically reviewed for impairment. Investments are considered to be impaired when its fair value is less than its amortized cost basis and it is more likely than not that we will be required to sell the impaired security before recovery of its amortized cost basis. Factors considered in determining whether a loss is temporary include the magnitude of the decline in market value, the length of time the market value has been below cost (or adjusted cost), credit quality, and our ability and intent to hold the securities for a period of time sufficient to allow for any anticipated recovery in market value. We also invest in equity instruments of privately-held companies for business and strategic purposes. These investments are classified as other assets and are accounted for under the cost method as we do not have the ability to exercise significant influence over their operations. We monitor our investments for impairment and record reductions in carrying value when events or changes in circumstances indicate that the carrying value may not be recoverable. Determination of impairment is highly subjective and is based on a number of factors, including an assessment of the strength of investee's management, the length of time and extent to which the fair value has been less than our cost basis, the financial condition and near-term prospects of the investee, fundamental changes to the business prospects of the investee, share prices of subsequent offerings, and our intent and ability to hold the investment for a period of time sufficient to allow for any anticipated recovery in our carrying value. We estimate fair value of our cost method investments considering available information such as pricing in recent rounds of financing, current cash positions, earnings and cash flow forecasts, recent operational performance and any other readily available market data. Segment Reporting We operate in one segment for the design, development, manufacture and distribution of high-performance compound semiconductor substrates and sale of materials. In accordance with ASC topic 280, Segment Reporting, our chief operating decision-maker has been identified as the chief executive officer, who reviews operating results to make decisions about allocating resources and assessing our performance. While we obtain financial statements from all of our joint ventures in order to prepare our consolidated financial statements, we do not review them either individually or in the aggregate when making operating decisions for our business. We manage our Company on a consolidated basis with a review of revenue by product. We discuss revenue and capacity for both AXT and our joint ventures collectively, when determining capacity constraints and need for raw materials in our business, and consider their capacity when determining our strategic and product marketing and advertising strategies. While we consolidate our majority-owned joint ventures, we do not allocate resources to any of them, nor allocate any portion of overhead, interest and other income, interest expense or taxes to them. We therefore have determined that our joint venture operations do not constitute an operating segment. Stock-Based Compensation We have employee stock option plans, which are described more fully in Note 11—Employee Benefit Plans and Stock-based Compensation. We account for stock-based compensation in accordance with the provisions of ASC topic 718, Compensation-Stock Compensation ("ASC 718"). We utilize the Black-Scholes option pricing model to determine the fair value of the stock options granted. Stock-based compensation cost is measured at each grant date, based on the fair value of the award, and is recognized as expense over the requisite service period of the award. All of our stock compensation is accounted for as an equity instrument. Research and Development Research and development costs consist primarily of salaries including stock compensation expense and related personnel costs, depreciation and product testing and are expensed as incurred. Advertising Costs Advertising costs, included in selling, general and administrative expenses, are expensed as incurred. Advertising costs for the years ended December 31, 2012, 2011, and 2010 were $19,000, $16,000 and $83,000, respectively. Shipping and Handling costs We include fees billed to customers and costs incurred for shipping and handling as a component of cost of sales. Income Taxes We account for income taxes in accordance with ASC topic 740, Income Taxes ("ASC 740") which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax bases of recorded assets and liabilities. ASC 740 also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that a portion of the deferred tax asset will not be realized. The impact of ASC 740 is more fully described in Note 13. Comprehensive Income We report comprehensive income in accordance with the provisions of ASC topic 220 Comprehensive Income ("ASC 220") which establishes standards for reporting comprehensive income or loss and its components in the financial statements. The components of other comprehensive income consist of unrealized gains and losses on marketable securities and foreign currency translation adjustments. Comprehensive income is presented in the consolidated statements of comprehensive income. Net Income Per Share Basic net income per share is computed using the weighted average number of common shares outstanding during the periods less shares of common stock subject to repurchase and non-vested stock awards. Diluted net income per share is computed using the weighted average number of common shares outstanding and potentially dilutive common shares outstanding during the periods. The dilutive effect of outstanding stock options and restricted stock awards is reflected in diluted earnings per share by application of the treasury stock method. Potentially dilutive common shares consist of common shares issuable upon the exercise of stock options and vesting of restricted stock awards. Recent Accounting Pronouncements In February 2013, the FASB issued ASU No. 2013-02, "Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income". This standard requires entities to present information about reclassification adjustments from accumulated other comprehensive income in the annual financial statements in a single note or on the face of the financial statements. Public companies will also have to provide this information in their interim financial statements. The new requirements are effective as of the beginning of a fiscal year that begins after December 15, 2012 and interim and annual periods thereafter. The standard will become effective for us for the three months ended March 31, 2013 and is not expected to have a material impact on our consolidated results of operations and financial condition.

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