| Basis of Presentation and Summary of Significant Accounting Policies | 1. Basis of Presentation and Summary of Significant Accounting Policies Description of Business and Basis of Presentation Corcept Therapeutics Incorporated was incorporated in the State of Delaware in May 1998, and our headquarters are located in Menlo Park, California. We are a pharmaceutical company engaged in the discovery, development and commercialization of medications that treat severe metabolic, oncologic, and psychiatric disorders by modulating the effect of the stress hormone cortisol. In 2012, the United States Food and Drug Administration (“FDA”) approved Korlym ® Basis of Presentation We have prepared the September 30, 2017 balance sheet and the statements of comprehensive income and cash flows in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. They do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting only of normal recurring adjustments) considered necessary for a fair presentation have been included. Operating results for the three and nine months ended September 30, 2017 are not necessarily indicative of the results that may be expected for the year ending December 31, 2017 or any other period. These financial statements and notes should be read in conjunction with the financial statements for the year ended December 31, 2016 included in our Annual Report on Form 10-K. The December 31, 2016 balance sheet has been derived from audited financial statements at that date. Principles of Consolidation Our financial statements include the financial position and results of Corcept Therapeutics UK Limited, our wholly owned subsidiary. Corcept Therapeutics UK Limited was incorporated in the United Kingdom in March 2017, and to date, there have been no material financial transactions or balances related to this entity. Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ materially from those estimates. We reevaluate our estimates and assumptions each quarter, including those related to revenue recognition, sales returns, inventory, allowances for doubtful accounts and accrued liabilities, including our bonus accrual, clinical trial accruals and stock-based compensation . Fair Value Measurements We value financial instruments using the assumptions we believe third-party market participants would adopt when valuing such instruments . Our methodology uses a “fair value hierarchy” that . Cash and Cash Equivalents and Marketable Securities We consider all highly liquid investments purchased with original maturities of three months or less from the date of purchase to be cash equivalents. Cash equivalents are carried at fair value as measured using Level 1 inputs, which approximates cost . As of December 31, 2016, all of our funds were held in checking and money market fund accounts maintained at major U.S. financial institutions. Effective January 2017, we invested a portion of our funds in marketable securities, primarily U.S. Treasury securities, commercial paper and corporate notes. We classify our marketable securities as available-for-sale securities and report them at fair value as “cash equivalents” or “marketable securities” on our balance sheet, with related unrealized gains and losses included in stockholders' equity. Realized gains and losses and permanent declines in value are included in “interest and other income” in our statement of comprehensive income. Concentration of Credit Risk We are subject to credit risk from our portfolio of cash, cash equivalents and marketable securities. We limit our investments to U.S. Treasury obligations and high-grade corporate debt with less than a 36-month maturity. We are not exposed to any significant concentration of credit from these investments. Inventory We value inventory at the lower of cost or net realizable value. We determine the cost of inventory using the specific identification method, which approximates a first-in, first-out basis. We write down inventory that has become obsolete or has a cost basis in excess of its expected net realizable value. Any expired inventory is disposed of and the related costs are recognized as cost of sales in the statement of comprehensive income in that period. Inventory amounts that are not expected to be consumed within 12 months following the balance sheet date are classified as strategic inventory, a noncurrent asset. We expense the manufacturing costs for product candidates incurred prior to regulatory approval as research and development expense as we incur them. We begin capitalizing costs related to the manufacture of a product candidate when we obtain regulatory approval to begin marketing that product . Long-term Obligation In August 2012, we entered into a Purchase and Sale Agreement (“Financing Agreement”) with Biopharma Secured Debt Fund II Sub, S.à r.l (“Biopharma”), a private limited liability company organized under the laws of Luxembourg. Under the terms of the Financing Agreement, we received $30.0 million from Biopharma, which we recorded as a long-term obligation. In return, we were obligated to make payments to Biopharma totaling $45.0 million. These payments equaled a percentage of (i) our net product sales, including sales from any product containing mifepristone or any of our proprietary selective cortisol modulators (“Covered Products”) and (ii) cash or cash equivalents received from any licensing transaction or co-promotion arrangement involving Covered Products (together, “Korlym Receipts”). Once we had paid Biopharma a total of $45.0 million, no more payments would be due and the obligation would be extinguished. We recognized a portion of each quarterly payment under the Financing Agreement as interest expense, which we determined by calculating the interest rate to Biopharma implied by the stream of quarterly payments we expected to make. In each period, the amount shown on our balance sheet as the current portion was our estimate of the amount we expected to pay Biopharma in the following 12 months. We recorded the rest of the outstanding portion of the obligation, if any, as a long-term liability. We made our final payment to Biopharma, completely satisfying our obligations under the Financing Agreement, in July 2017. See Note 4, Long-Term Obligation Net Product Sales We primarily sell Korlym directly to patients through a specialty pharmacy. We recognize revenue upon the delivery of Korlym if (i) there is persuasive evidence that an arrangement exists with the customer, (ii) collectability is reasonably assured and (iii) the sales price is fixed or determinable. In order to conclude that the price is fixed or determinable, we must be able to (i) calculate gross product revenue from a sale and (ii) reasonably estimate the associated net revenue. . We provide Korlym at no cost to patients without insurance who do not qualify for charitable support. Through August 9, 2017 our exclusive specialty pharmacy was Dohmen Life Science Services (“Dohmen”). On August 10, 2017, Optime Care, Inc. (“Optime”) became our exclusive specialty pharmacy. We also sell Korlym to a specialty distributor (“SD”), which we recognize at the time the SD receives the Korlym. SD sales were less than two percent of our net revenue in the three and nine months ended September 30, 2017. We donate cash to charities that help patients with financial need pay for the treatment of Cushing’s syndrome. We do not include payments we receive from these organizations in revenue. We calculate gross product revenues based on the price we charge our customers. We estimate net product revenues by deducting from gross product revenues (a) estimated government rebates, (b) estimated costs of our patient co-pay assistance program, (c) discounts for prompt payment and (d) reserves for expected product returns. We record estimates for these deductions at the time we recognize the gross revenue and update them as new information becomes available . Rebates and Chargebacks: Korlym is eligible for purchase by or qualifies for partial or full reimbursement from Medicaid and other government programs. We estimate any government rebate amounts by applying the discount rates applicable to each government-funded program against our sales to patients covered by such programs . Allowances for Patient Assistance Program: It is our policy that no patient be denied Korlym due to inability to pay. We provide financial assistance to eligible patients whose insurance policies require them to pay high deductibles and co-payments. We determine the amount of such assistance by applying our program guidelines to all eligible sales in the period . Sales Returns : We deduct from each period’s gross revenue the amount of Korlym we estimate will be returned. When estimating returns, we analyze quantitative and qualitative information including, but not limited to, historical return rates, the amount of product in the distribution channel, the expiration date of the product, current and projected product demand, the introduction of competing products that may erode demand, and broad economic and industry-wide indicators. If we cannot reasonably estimate product returns with respect to a particular sale, we defer recognition of revenue from that sale until we can make a reasonable estimate. Research and Development Research and development expenses consist of direct expenses, such as the cost of discovery research, pre-clinical studies, and clinical trials relating to our portfolio of proprietary, selective cortisol modulators, manufacturing development, preparations for submissions to the FDA or other regulatory agencies and related overhead expenses. We expense nonrefundable payments and the cost of technologies and materials used in research and development as they are incurred . We base our cost accruals for research, preclinical activities, and clinical trials on estimates of work completed under service agreements, milestones achieved, patient enrollment and past experience with similar contracts. Our estimates of work completed and associated cost accruals include our assessments of information from third-party contract research organizations and the overall status of clinical trial and other development and administrative activities . Segment Reporting We determine our operating segments based on the way we organize our business, make decisions and assess performance. We have only one operating segment, which is the discovery, development and commercialization of pharmaceutical products. Stock-Based Compensation We account for stock-based compensation related to option grants under the fair value method, based on the value of the award at the grant date, using the Black-Scholes option valuation model. We recognize this expense over the requisite vesting period, net of estimated forfeitures . If actual forfeitures differ from our estimates, we adjust stock-based compensation expense accordingly . We recognize the expense of options granted to non-employees based on the fair value based measurement of the option grants at the time of vesting. Recently Adopted Accounting Pronouncements In August 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2014-15 (Subtopic 205-40), “Presentation of Financial Statements—Going Concern: Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern”. We adopted this standard on January 1, 2017. Because we generated cash in 2015 and 2016 and expect to generate cash in 2017, adoption had no impact on our financial statements . In July 2015, FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory, which requires certain inventory to be measured at the lower of cost or net realizable value. We adopted this standard on January 1, 2017 and it did not have a material impact on our financial statements . In November 2015, FASB issued ASU No. 2015-17 "Balance Sheet Classification of Deferred Taxes," which requires that deferred tax liabilities and assets be classified as noncurrent. We adopted this standard prospectively on January 1, 2017. Because we have a valuation allowance equal to the full amount of our deferred tax assets, adoption did not have a material impact on our financial statements . In March 2016, FASB issued ASU No. 2016-09, Compensation - Stock Compensation (Topic 718) “Improvements to Employee Share-Based Payment Accounting,” which simplifies accounting for transactions involving shares awarded to employees . It requires companies to record excess tax benefits and deficiencies as income tax expenses or benefits instead of including them in additional paid-in capital. At the start of the year in which they implement the guidance, companies must adjust retained earnings by an amount equal to any previously unrecognized excess tax expenses or benefits. We adopted this guidance on January 1, 2017, at which time we recognized a $0.7 million deferred tax asset, which was offset by a corresponding increase to our deferred tax valuation allowance, resulting in no change to our balance sheet. We elected to report on a prospective basis cash flows related to excess tax benefits as an operating activity and to . Adoption of this standard did not have a material impact on our financial statements. Recently Issued Accounting Pronouncements Not Yet Adopted In May 2014, FASB issued ASU No. 2014-09, “Revenue from Contracts with Customers,” which changes the way companies recognize revenue. We plan to adopt this update using the modified retrospective approach, with the cumulative effect of adoption being recorded to our retained earnings on January 1, 2018. We have completed our evaluation of the contracts governing our sales process and are reviewing our related disclosures, policies and controls, which we will change as required when we adopt the standard. Because our arrangements with customers contain variable consideration, we have focused our analysis on how the new standard will affect our estimate of transaction prices, which we believe the update will not change materially. We do not believe adoption will have a material impact on our financial statements. In February 2016, FASB issued ASU No. 2016-02, “Leases”, which requires the recognition of lease transactions with terms longer than 12 months on the balance sheet as “lease liabilities” and “right-of-use assets.” We plan to adopt this new standard prospectively on January 1, 2019. We expect that adoption will increase our “lease liabilities” and “right-of-use assets” equally . In August 2016, FASB issued ASU No. 2016-15, “Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments.” We plan to adopt this standard on January 1, 2018, and do not expect it to have a material impact on our financial statements . In May 2017 FASB issued ASU No. 2017-09, Stock Compensation (Topic 718): “Scope of Modification Accounting,” which changes the accounting for modifications to the terms and conditions of share-based payment awards. We plan to adopt this standard on January 1, 2018 and do not expect it to have a material impact on our financial statements |
