2.	Summary of Significant Accounting Policies

Management estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“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 from those estimates. Significant estimates made by management include, among others, sales returns, discounts and allowances, provisions for uncollectible receivables, realizability of inventories, valuation of investments, recoverability of long-lived assets, recognition of deferred revenue, the fair value of stock options, warrants and shares issued for non-cash consideration, determination of expenses in outsourced contracts, and realization of deferred tax assets.

Cash and cash equivalents

Cash and cash equivalents consist of cash and highly liquid investments with maturities of three months or less at the date of acquisition.

Concentration of credit risk and sources of supply

Financial assets that potentially subject the Company to concentrations of credit risk consist of cash and cash equivalents and trade receivables. The Company’s cash and cash equivalents are placed in various money market mutual funds and at financial institutions of high credit standing. At times, deposits held with these financial institutions may exceed the amount of insurance provided by the Federal Deposit Insurance Corporation (FDIC). Generally, these deposits may be redeemed upon demand and, therefore, bear minimal risk. The Company performs ongoing credit evaluations of customers’ financial condition and may limit the amount of credit extended if necessary; however, the Company has historically required no collateral from its customers.

The Company currently has sole suppliers for the active pharmaceutical ingredients (“APIs”) for NUEDEXTA and a sole manufacturer for the finished form of NUEDEXTA. In addition, these materials are custom and available from only a limited number of sources. Any material disruption in manufacturing could cause a delay in shipments and possible loss of revenue. If the Company is required to change manufacturers, the Company may experience delays associated with finding an alternative manufacturer that is properly qualified to produce NUEDEXTA in accordance with FDA requirements and the Company’s specifications.

Inventories

Inventories are stated at the lower of cost or market. Cost is determined on a first-in, first-out (“FIFO”) basis. The Company evaluates the carrying value of inventories on a regular basis, based on the price expected to be obtained for products in their respective markets compared with historical cost. Write-downs of inventories are considered to be permanent reductions in the cost basis of inventories.

The Company also regularly evaluates its inventories for excess quantities and obsolescence (expiration), taking into account such factors as historical and anticipated future sales or use in production compared to quantities on hand and the remaining shelf life of products and active pharmaceutical ingredients on hand. The Company establishes reserves for excess and obsolete inventories as required based on its analyses.

Property and equipment

Property and equipment, net, is stated at cost less accumulated depreciation and amortization. Depreciation and amortization is computed using the straight-line method over the estimated useful life of the asset. Computer equipment and related software are depreciated over three to five years. Office equipment, furniture and fixtures are depreciated over five years. Manufacturing equipment is depreciated over eight years. Leasehold improvements are amortized over the estimated useful life or remaining lease term, whichever is shorter.

Valuation of long-lived assets

Long-lived assets are evaluated for impairment whenever events or changes in circumstances indicate that their carrying value may not be recoverable. If the review indicates that a long-lived asset is not recoverable (i.e. the carrying amount is less than the future projected undiscounted cash flows), its carrying amount would be reduced to fair value. Factors management considers important that could trigger an impairment review include the following:

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A significant underperformance relative to expected historical or projected future operating results;

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A significant change in the manner of the Company’s use of the acquired asset or the strategy for its overall business; and/or

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A significant negative industry or economic trend.

Based on its analysis, the Company’s management believes that no impairment of the carrying value of its long-lived assets existed at September 30, 2013 and 2012.

Deferred rent

The Company accounts for rent expense related to operating leases by determining total minimum rent payments on the leases over their respective periods and recognizing the rent expense on a straight-line basis. The difference between the actual amount paid and the amount recorded as rent expense in each fiscal year is recorded as an adjustment to deferred rent. Deferred rent as of September 30, 2013 and 2012 was approximately $367,000 and $434,000, respectively, and is included in accrued expenses and other liabilities in the accompanying consolidated balance sheets.

Fair value of financial instruments

The Company measures the fair value of certain of its financial assets on a recurring basis. A fair value hierarchy is used to rank the quality and reliability of the information used to determine fair values. Financial assets and liabilities carried at fair value will be classified and disclosed in one of the following three categories:

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Level 1-Quoted prices (unadjusted) in active markets for identical assets and liabilities.

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Level 2-Inputs other than Level 1 that are observable, either directly or indirectly, such as unadjusted quoted prices for similar assets and liabilities, unadjusted quoted prices in the markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

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Level 3-Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

At September 30, 2013 and 2012, the Company’s financial instruments include cash and cash equivalents, restricted cash and cash equivalents, trade receivables, restricted investments, accounts payable, accrued expenses and other liabilities, accrued compensation and payroll taxes, and notes payable. The carrying amount of cash and cash equivalents, restricted cash and cash equivalents, trade receivables, accounts payable, accrued expenses and other liabilities, and accrued compensation and payroll taxes approximates fair value due to the short-term maturities of these instruments. The Company’s restricted investments are carried at amortized cost which approximates fair value. Based on borrowing rates currently available to the Company, the carrying value of notes payable approximates fair value.

Restricted cash and cash equivalents and restricted investments

Restricted cash and cash equivalents and restricted investments consist of certificates of deposit, which are classified as held-to-maturity.

Restricted cash and cash equivalents consist of a certificate of deposit relating to the Company’s corporate credit card agreement and automatically renews every three months. Restricted short-term investment consists of a certificate of deposit related to an irrevocable standby letter of credit connected to the short-term portion of an office lease which expired in February 2013.

Long-term restricted investments consist of two certificates of deposit related to irrevocable standby letters of credit connected to fleet rentals and an office lease with an expiration date in 2018. The certificates of deposit automatically renew annually.

Debt issuance costs and debt discount

Debt issuance costs are stated at cost, net of accumulated amortization in other assets in the consolidated balance sheets. Debt discount is recorded within notes payable in the consolidated balance sheets. Amortization expense of debt issuance costs and the debt discount is calculated using the interest method over the term of the debt and is recorded in interest expense in the accompanying consolidated statements of operations.

Revenue recognition

The Company has historically generated revenues from product sales, collaborative research and development arrangements, and other commercial arrangements such as royalties, the sale of royalty rights and sales of technology rights. Payments received under such arrangements may include non-refundable fees at the inception of the arrangements, milestone payments for specific achievements designated in the agreements, royalties on sales of products resulting from collaborative arrangements, and payments for the sale of rights to future royalties.

The Company recognizes revenue when all of the following criteria are met: (1) persuasive evidence of an arrangement exists; (2) delivery has occurred or services have been rendered; (3) the Company’s price to the buyer is fixed or determinable; and (4) collectability is reasonably assured. In addition, certain product sales are subject to rights of return. For products sold where the buyer has the right to return the product, the Company recognizes revenue at the time of sale only if (1) the Company’s price to the buyer is substantially fixed or determinable at the date of sale, (2) the buyer has paid the Company, or is obligated to pay the Company and the obligation is not contingent on resale of the product, (3) the buyer’s obligation to the Company would not be changed in the event of theft or physical destruction or damage of the product, (4) the buyer acquiring the product for resale has economic substance apart from that provided by the seller, (5) the Company does not have significant obligations for future performance to directly bring about resale of the product by the buyer, and (6) the amount of future returns can be reasonably estimated. The Company recognizes such product revenues when either it has met all the above criteria, including the ability to reasonably estimate future returns, or when it can reasonably estimate that the return privilege has substantially expired, whichever occurs first.

Product Sales — NUEDEXTA. NUEDEXTA is sold primarily to third-party wholesalers that, in turn, sell this product to retail pharmacies, hospitals, and other dispensing organizations. The Company has entered into agreements with wholesale customers, certain medical institutions and third-party payers throughout the United States. These agreements frequently contain commercial terms, which may include favorable product pricing and discounts and rebates payable upon dispensing the product to patients. Additionally, these agreements customarily provide the customer with rights to return the product, subject to the terms of each contract. Consistent with pharmaceutical industry practice, wholesale customers can return purchased product during an 18-month period that begins six months prior to the product’s expiration date and ends 12 months after the expiration date.

The Company’s net product sales represent gross product sales less allowances for customer credits, including estimated discounts, rebates, chargebacks and co-pay assistance. These allowances provided by the Company to a customer are presumed to be a reduction of the selling prices of the Company’s products or services and, therefore, are characterized as a reduction of revenue when recognized in the Company’s consolidated statement of operations. Allowances for discounts, rebates, chargebacks and co-pay assistance are estimated based on contractual terms with customers and sell-through data purchased from third parties. The Company believes the assumptions used to estimate these allowances are reasonable considering known facts and circumstances. However, actual rebates and chargebacks could differ materially from estimated amounts because of, among other factors, unanticipated changes in prescription trends and any change in assumptions affecting sell-through data purchased from third parties. Product shipping and handling costs are included in cost of product sales.

Prior to the second quarter of fiscal 2012, the Company was unable to reasonably estimate future returns due to the lack of sufficient historical return data for NUEDEXTA. Accordingly, the Company invoiced the wholesaler, recorded deferred revenue at gross invoice sales price less estimated cash discounts and distribution fees, and classified the inventory shipped as finished goods. The Company previously deferred recognition of revenue and the related cost of product sales on shipments of NUEDEXTA until the right of return no longer existed, i.e. when the Company received evidence that the products had been dispensed to patients. The Company estimated patient prescriptions dispensed using an analysis of third-party information.

Product Sales — Active Pharmaceutical Ingredient docosanol (“docosanol”). Revenue from sales of the Company’s docosanol is recorded when title and risk of loss have passed to the buyer, provided the criteria for revenue recognition have been met. The Company sells the docosanol to various licensees upon receipt of a written order for the materials. Shipments generally occur fewer than three times per year. The Company’s contracts for sales of the docosanol include buyer acceptance provisions that give the Company’s buyers the right of replacement if the delivered product does not meet specified criteria. That right requires that they give the Company notice within 30 days after receipt of the product. The Company has the option to refund or replace any such defective materials; however, it has historically demonstrated that the materials shipped from the same pre-inspected lot have consistently met the specified criteria and no buyer has rejected any of the Company’s shipments from the same pre-inspected lot to date. Therefore, the Company recognizes revenue at the time of delivery without providing any returns reserve.

Multiple Element Arrangements. The Company has, in the past, entered into arrangements whereby it delivers to the customer multiple elements including technology and/or services. Such arrangements have included some combination of the following: antibody generation services; licensed rights to technology, patented products, compounds, data and other intellectual property; and research and development services. At the inception of each such arrangement, the Company analyzes the multiple elements contained within the arrangement to determine whether the elements can be separated. If a product or service is not separable, the combined deliverables will be accounted for as a single unit of accounting.

A delivered element can be separated from other elements when it meets both of the following criteria: (1) the delivered item has value to the customer on a standalone basis; and (2) if the arrangement includes a general right of return relative to the delivered item, delivery or performance of the undelivered item is considered probable and substantially in the Company’s control. If an element can be separated, the Company allocates amounts based upon the selling price of each element. The Company determines the selling price of a separate deliverable using the price it charges other customers when it sells that product or service separately; however, if the Company does not sell the product or service separately, it uses third-party evidence of selling price of a similar product or service to a similarly situated customer. The Company considers licensed rights or technology to have standalone value to its customers if it or others have sold such rights or technology separately or its customers can sell such rights or technology separately without the need for the Company’s continuing involvement. The Company has not entered into any multiple element arrangements which have required the Company to estimate selling prices during fiscal 2013, 2012 and 2011.

License Arrangements. License arrangements may consist of non-refundable up-front license fees, data transfer fees, research reimbursement payments, exclusive licensed rights to patented or patent pending compounds, technology access fees, and various performance or sales milestones. These arrangements are often multiple element arrangements.

Non-refundable, up-front fees that are not contingent on any future performance by the Company, and require no consequential continuing involvement on its part, are recognized as revenue when the license term commences and the licensed data, technology and/or compound is delivered. Such deliverables may include physical quantities of compounds, design of the compounds and structure-activity relationships, the conceptual framework and mechanism of action, and rights to the patents or patents pending for such compounds. The Company defers recognition of non-refundable up-front fees if it has continuing performance obligations without which the technology, right, product or service conveyed in conjunction with the non-refundable fee has no utility to the licensee that is separate and independent of the Company’s performance under the other elements of the arrangement. In addition, if the Company has required continuing involvement through research and development services that are related to its proprietary know-how and expertise of the delivered technology, or can only be performed by the Company, then such up-front fees are deferred and recognized over the period of continuing involvement.

Payments related to substantive, performance-based milestones in a research and development arrangement are recognized as revenues upon the achievement of the milestones as specified in the underlying agreements when they represent the culmination of the earnings process.

Royalty Arrangements. The Company recognizes royalty revenues from licensed products when earned in accordance with the terms of the license agreements. Net sales amounts generally required to be used for calculating royalties include deductions for returned product, pricing allowances, cash discounts, freight and warehousing. These arrangements are often multiple element arrangements.

Certain royalty arrangements provide that royalties are earned only if a sales threshold is exceeded. Under these types of arrangements, the threshold is typically based on annual sales. For royalty revenue generated from the license agreement with GlaxoSmithKline (“GSK”), the Company recognizes royalty revenue in the period in which the threshold is exceeded. For royalty revenue generated from the license agreement with Azur Pharma (“Azur”), the Company recognizes revenue when it has determined that the threshold has been exceeded.

When the Company sells its rights to future royalties under license agreements and also maintains continuing involvement in earning such royalties, it defers recognition of any up-front payments and recognizes them as revenues over the life of the license agreement. The Company recognizes revenues for the sale of an undivided interest of its Abreva^® license agreement to Drug Royalty USA under the “units-of-revenue method.” Under this method, the amount of deferred revenues to be recognized in each period is calculated by multiplying the ratio of the royalty payments due to Drug Royalty USA by GSK for the period to the total remaining royalties the Company expects GSK will pay Drug Royalty USA over the remaining term of the agreement.

Cost of product sales

Cost of product sales includes third-party royalties and direct and indirect costs to manufacture product sold, including packaging, storage, shipping and handling costs and the write-off of obsolete inventory.

Recognition of expenses in outsourced contracts

Pursuant to management’s assessment of the services that have been performed on clinical trials and other contracts, the Company recognizes expense as the services are provided. Such management assessments include, but are not limited to: (1) an evaluation by the project manager of the work that has been completed during the period, (2) measurement of progress prepared internally and/or provided by the third-party service provider, (3) analyses of data that justify the progress, and (4) management’s judgment. Several of the Company’s contracts extend across multiple reporting periods.

Research and development expenses

Research and development expenses consist of expenses incurred in performing research and development activities including salaries and benefits, facilities and other overhead expenses, clinical trials, contract services and other outsourced contracts. Research and development expenses are charged to operations as they are incurred. Up-front payments to collaborators made in exchange for the avoidance of potential future milestone and royalty payments on licensed technology are also charged to research and development expense when the drug is still in the development stage, has not been approved by the FDA for commercialization and has no alternative uses.

The Company assesses its obligations to make milestone payments that may become due under licensed or acquired technology to determine whether the payments should be expensed or capitalized. The Company charges milestone payments to research and development expense when:

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The technology is in the early stage of development and has no alternative uses;

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There is substantial uncertainty regarding the future success of the technology or product;

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There will be difficulty in completing the remaining development; and

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There is substantial cost to complete the work.

Acquired contractual rights. Payments to acquire contractual rights to a licensed technology or drug candidate are expensed as incurred when there is uncertainty in receiving future economic benefits from the acquired contractual rights. The Company considers the future economic benefits from the acquired contractual rights to a drug candidate to be uncertain until such drug candidate is approved by the FDA or when other significant risk factors are abated.

Share-based compensation

The Company grants options, restricted stock units and restricted stock awards to purchase the Company’s common stock to employees, directors and consultants under stock option plans. The benefits provided under these plans are share-based payments that the Company accounts for using the fair value method.

The fair value of each option award is estimated on the date of grant using a Black-Scholes-Merton option pricing model (“Black-Scholes model”) that uses assumptions regarding a number of complex and subjective variables. These variables include, but are not limited to, expected stock price volatility, actual and projected employee stock option exercise behaviors, risk-free interest rate and expected dividends. Expected volatilities are based on the historical volatility of the Company’s common stock and other factors. The expected terms of options granted are based on analyses of historical employee termination rates and option exercises. The risk-free interest rate is based on the U.S. Treasury yield in effect at the time of the grant. Since the Company does not expect to pay dividends on common stock in the foreseeable future, it estimated the dividend yield to be 0%.

Share-based compensation expense recognized during a period is based on the value of the portion of share-based payment awards that is ultimately expected to vest and is amortized under the straight-line attribution method. As share-based compensation expense recognized in the accompanying consolidated statements of operations for fiscal 2013, 2012, and 2011 is based on awards ultimately expected to vest, it has been reduced for estimated forfeitures. The fair value method requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. The Company estimates forfeitures based on historical experience. Changes to the estimated forfeiture rate are accounted for as a cumulative effect of change in the period the change occurred.

Total compensation expense related to all of the Company’s share-based awards for fiscal 2013, 2012 and 2011 was comprised of the following:


	Years Ended September 30,
	2013		2012		2011
Share-based compensation classified as:
Research and development expense	$	1,071,932	$	964,876	$	644,057
Selling and marketing expense		1,650,256		908,299		600,023
General and administrative expense		3,123,605		3,004,307		2,534,373

Total	$	5,845,793	$	4,877,482	$	3,778,453


	Years Ended September 30,
	2013		2012		2011
Share-based compensation expense from:
Stock options	$	4,233,133	$	3,643,210	$	2,580,836
Restricted stock units		1,612,660		1,234,272		1,197,617

Total	$	5,845,793	$	4,877,482	$	3,778,453

Since the Company has a net operating loss carry-forward as of September 30, 2013, 2012, and 2011, no excess tax benefits for tax deductions related to share-based awards were recognized in the accompanying consolidated statements of operations. Additionally, no incremental tax benefits were recognized from stock options exercised in fiscal 2013, 2012, and 2011 that would have resulted in a reclassification from cash flows from operating activities to cash flows from financing activities.

Advertising expenses

Advertising costs are expensed as incurred, and these costs are included in both research and development expenses as related to clinical trials, and selling, general and administrative expenses, which include promotional materials for physicians. Advertising costs were approximately $8.9 million, $7.3 million and $5.7 million for fiscal 2013, 2012, and 2011, respectively.

Income taxes

The Company accounts for income taxes and the related accounts under the liability method. Deferred tax assets and liabilities are determined based on the differences between the consolidated financial statement carrying amounts and the income tax bases of assets and liabilities. A valuation allowance is applied against any net deferred tax asset if, based on available evidence, it is more likely than not that some or all of the deferred tax assets will not be realized.

The Company recognizes any uncertain income tax positions on income tax returns at the largest amount that is more-likely-than-not to be sustained upon audit by the relevant taxing authority. An uncertain income tax position will not be recognized if it has less than a 50% likelihood of being sustained.

The total unrecognized tax benefit resulting in a decrease in deferred tax assets and corresponding decrease in the valuation allowance at September 30, 2013 is $3.6 million. There are no unrecognized tax benefits included in the consolidated balance sheet that would, if recognized, affect the effective tax rate.

The Company’s policy is to recognize interest and/or penalties related to income tax matters in income tax expense. The Company had $0 accrued for interest and penalties on the Company’s consolidated balance sheets at September 30, 2013 and 2012.

The Company is subject to taxation in the U.S. and various state jurisdictions. The Company’s tax years for 1995 and forward for federal purposes and 1989 and forward for California purposes are subject to examination by the U.S. and California tax authorities due to the carryforward of unutilized net operating losses and research and development credits.

The Company does not foresee material changes to its gross uncertain income tax position liability within the next twelve months.

Recent authoritative guidance

In July 2013, the FASB issued Accounting Standards Update (“ASU”) No. 2013-11, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.” ASU 2013-11 provides explicit guidance on the financial statement presentation of an unrecognized tax benefit when a net operating loss carryforward, a similar tax loss, or a tax credit carryforward exists. The guidance is effective prospectively for fiscal years, and interim periods within those years, beginning after December 15, 2013, with an option for early adoption. The Company intends to adopt this guidance at the beginning of its first quarter of fiscal year 2015, and is currently evaluating the impact on its consolidated financial statements and disclosures.

Proposed Amendments to Current Accounting Standards. The Financial Accounting Standard Board (“FASB”) is currently working on amendments to existing accounting standards governing a number of areas including, but not limited to, revenue recognition and lease accounting.

In June 2010, the FASB issued an exposure draft, Revenue from Contracts with Customers, which would supersede most of the existing guidance on revenue recognition in Accounting Standards Codification (“ASC”) Topic 605, Revenue Recognition. In November 2011, the FASB re-exposed this draft and it expects a final standard to be issued during the first quarter of calendar 2014. As the standard-setting process is still ongoing, the Company is unable to determine the impact this proposed change in accounting will have in the Company’s consolidated financial statements at this time.

In August 2010, the FASB issued an exposure draft, Leases, which would result in significant changes to the accounting requirements for both lessees and lessors in ASC Topic 840, Leases. In May 2013, the FASB re-exposed this draft and the comment period closed in September 2013. As the standard-setting process is still ongoing, the Company is unable to determine the impact this proposed change in accounting will have in the Company’s consolidated financial statements at this time.