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Significant Accounting Policies (Policies) | 12 Months Ended
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Dec. 31, 2012
Principles of Consolidation | Principles of Consolidation The consolidated financial statements include the accounts of the Company and its wholly-owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates | Use of Estimates The preparation of the Company’s consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and expenses during the reporting period. Accounting estimates are based on historical experience and other factors that are considered reasonable under the circumstances. Actual results could differ from those estimates.
Cash and Cash Equivalents | Cash and Cash Equivalents Cash and cash equivalents consist of cash, deposits held at call with banks and short term highly liquid instruments with remaining maturities at the date of purchase of 90 days or less.
Inventory | Inventory The Company states inventories at the lower of cost or market. Cost is determined based on actual cost. An allowance is established when management determines that certain inventories may not be saleable. If inventory cost exceeds expected market value due to obsolescence or quantities in excess of expected demand, the Company will record a reserve for the difference between cost and market value. The Company received FDA approval on July 26, 2012 and after that date began capitalizing inventory purchases of saleable product from approved suppliers.
Property & Equipment | Property & Equipment The Company provides for depreciation and amortization using the straight-line method by charges to operations in amounts that depreciate the cost of the fixed asset over their estimated useful lives. The estimated useful lives, by asset classification, are as follows:
Asset Classification |  | Useful Lives
Computer equipment and software |  | 3 - 5 years
Furniture and fixtures |  | 5 years
Leasehold Improvements |  | Lesser of useful life or lease term
Upon retirement or sale of assets, the cost of the assets disposed and the related accumulated depreciation are removed from the balance sheet and any resulting gain or loss is credited or expensed to operations. Repairs and maintenance costs are expensed as incurred. The Company reviews its long-lived assets for impairment whenever events or changes in circumstances indicate that the carrying amount of such assets may not be recoverable. Recoverability of these assets is determined by comparing the forecasted undiscounted net cash flows of the operation to which the assets relate to their carrying amount. If impairment is indicated, the assets are written down to fair value. Fair value is determined based on undiscounted forecasted cash flows or appraised values, depending on the nature of the assets.
Intangible Asset, net | Intangible Asset, net Intangible assets consist of a milestone payment paid to the former shareholders of Laxdale Limited related to the 2004 acquisition of our rights to Vascepa, which is the result of Vascepa receiving marketing approval for the first indication and is amortized over its estimated useful life on a straight-line basis. The company concluded that use of the straight-line method was appropriate as the majority of cash flows are expected to be generated ratably over the estimated useful life and no degradation of the cash flows over time is currently anticipated. See footnote 9 for further information regarding other obligations related to the acquisition of Laxdale Limited.
Research and Development Costs | Research and Development Costs The Company charges research and development costs to operations as incurred. Research and development expenses are comprised of costs incurred by the Company in performing research and development activities, including salary and benefits; stock-based compensation expense; laboratory supplies and other direct expenses; contractual services, including clinical trial and pharmaceutical development costs; commercial supply investment in its drug candidates; and infrastructure costs, including facilities costs and depreciation expense.
Marketing, General and Administrative Costs | Marketing, General and Administrative Costs The Company charges marketing, general and administrative costs to operations as incurred. Marketing, general and administrative costs include costs of salaries, programs and infrastructure necessary for the general conduct of the Company’s business, including preparations for the 2013 commercial launch of Vascepa in the United States for the MARINE indication. Included as part of marketing, general and administrative costs is warrant related expense from non-cash changes in fair value of the derivative liability associated with warrants issued in October 2009 to former officers of Amarin which is recorded as compensation expense.
Income Taxes | Income Taxes Deferred tax assets and liabilities are recognized for the future tax consequences of differences between the carrying amounts and tax bases of assets and liabilities and operating loss carryforwards and other attributes using enacted rates expected to be in effect when those differences reverse. Valuation allowances are provided against deferred tax assets that are not more likely than not to be realized. The Company provides reserves for potential payments of tax to various tax authorities or does not recognize tax benefits related to uncertain tax positions and other issues. Tax benefits for uncertain tax positions are based on a determination of whether a tax benefit taken by the Company in its tax filings or positions is more likely than not to be realized, assuming that the matter in question will be decided based on its technical merits. The Company’s policy is to record interest and penalties in the provision for income taxes.
Derivative Instruments | Derivative Instruments Derivative financial liabilities are recorded at fair value, with gains and losses arising for changes in fair value recognized in the statement of operations at each period end while such instruments are outstanding. If the Company issues shares to discharge the liability, the derivative financial liability is derecognized and common stock and additional paid-in capital are recognized on the issuance of those shares. The warrants are valued using a Black-Scholes option pricing model due to the nature of instrument. The long term debt redemption feature is valued using a probability-weighted model incorporating management estimates for potential change in control, and by determining the fair value of the debt with and without the change in control provision included. If the terms of warrants that initially require the warrant to be classified as a derivative financial liabilities lapse, the derivative financial liability is reclassified out of financial liabilities into equity at its fair value on that date. At settlement date, if the instruments are settled in shares the carrying value of the warrants are derecognised and transferred to equity at their fair value at that date. The cash proceeds received from exercises of warrants are recorded in common stock and additional paid-in capital.
Loss per Share | Loss per Share Basic net loss per share is determined by dividing net loss by the weighted average shares of common stock outstanding during the period. Diluted net loss per share is determined by dividing net loss by diluted weighted average shares outstanding. Diluted weighted average shares reflects the dilutive effect, if any, of potentially dilutive common shares, such as common stock options and warrants calculated using the treasury stock method and convertible notes using the “if-converted” method. In periods with reported net operating losses, all common stock options and warrants are deemed anti dilutive such that basic net loss per share and diluted net loss per share are equal.
Debt Instruments | Debt Instruments Debt instruments are initially recorded at fair value, with coupon interest and amortization of debt issuance discounts recognized in the statement of operations as interest expense at each period end while such instruments are outstanding. If the Company issues shares to discharge the liability, the debt obligation is derecognized and common stock and additional paid-in capital are recognized on the issuance of those shares. The Company’s exchangeable notes contain a conversion option which is classified as equity. The fair value of the liability component of the debt instrument was deducted from the initial proceeds to determine the proceeds to be allocated to the conversion option. The embedded conversion option is indexed to the Company’s stock and treated as equity on the balance sheet. The conversion option is evaluated on a quarterly basis to determine if it still meets the criteria to be equity classified. The excess principal amount of the debt over the carrying value of the liability is amortized to interest expense over the term of the debt. The Company’s December 2012 debt financing agreement contains a redemption feature triggered upon a change of control, which has been classified as an embedded derivative. The fair value of the derivative was recorded as a reduction to the fair value of the note payable. The fair value of this warrant derivative liability is remeasured at each reporting period, with changes in fair value recognized in the statement of operations. The discount recorded to the note payable is being amortized to interest expense over the term of the note payable.
Stock-Based Compensation | Stock-Based Compensation Stock-based compensation cost is generally measured at the grant date, based on the fair value of the award, and is recognized as compensation cost over the requisite service period.
Concentration of Credit Risk | Concentration of Credit Risk Financial instruments that potentially subject the Company to credit risk consist primarily of cash and cash equivalents. The Company maintains substantially all of its cash and cash equivalents in financial institutions believed to be of high-credit quality.
Foreign Currency | Foreign Currency All subsidiaries use the United States dollar as the functional currency. Monetary assets and liabilities denominated in a foreign currency are remeasured into United States dollars at year-end exchange rates. Non-monetary assets and liabilities carried in a foreign currency are remeasured into United States dollars using rates of exchange prevailing when such assets or liabilities were obtained or incurred, and expenses are generally remeasured using rates of exchange prevailing when such expenses are incurred. Gains and losses from the remeasurement are included in other (expense) income, net in the consolidated financial statements of operations. For transactions settled during the period, gains and losses are included in other (expense) income, net in the consolidated statements of operations. Foreign exchange gains and losses have not been significant in the periods presented.
Debt Issuance Costs | Debt Issuance Costs Debt issuance costs are initially capitalized as a deferred cost and amortized to interest expense using the effective interest method over the expected term of the related debt. Unamortized debt issuance costs related to extinguishment of debt are expensed at the time the debt is extinguished and recorded in other income (expenses), net in the consolidated statements of operations.
Fair Value of Financial Instruments | Fair Value of Financial Instruments The Company provides disclosure of financial assets and financial liabilities that are carried at fair value based on the price that would be received upon sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. Fair value measurements may be classified based on the amount of subjectivity associated with the inputs to fair valuation of these assets and liabilities using the following three levels: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date. Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.) and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). Level 3—Unobservable inputs that reflect the Company’s estimates of the assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data. The following table presents information about the Company’s assets and liabilities as of December 31, 2012 and 2011 that are measured at fair value on a recurring basis and indicates the fair value hierarchy of the valuation techniques the Company utilized to determine such fair value:
|  | December 31, 2012 |
In millions |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Asset: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents—money markets |  | $ | 64.1 |  |  | $ | 64.1 |  |  | $ | — |  |  | $ | — |
Liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant derivative liability |  | $ | 54.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 54.9 |
Long term debt redemption feature |  | $ | 14.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 14.6 |
|  | December 31, 2011 |
In millions |  | Total |  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |
Asset: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash equivalents—money markets |  | $ | 39.0 |  |  | $ | 39.0 |  |  | $ | — |  |  | $ | — |
Liability: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrant derivative liability |  | $ | 123.1 |  |  | $ | — |  |  | $ | — |  |  | $ | 123.1 |
The carrying amounts of cash, cash equivalents, accounts payable and accrued liabilities approximate fair value because of their short-term nature.
Long Term Debt Redemption Feature | Long Term Debt Redemption Feature The Company’s December 2012 financing agreement contains a redemption feature whereby, upon a change of control, the Company would be required to pay $140 million, less any previously repaid amount, if the change of control occurs on or before December 31, 2013, or required to repay $150 million, less any previously repaid amount, if the change of control event occurs after December 31, 2013. The Company determined this redemption feature to be an embedded derivative, which is carried at fair value and is classified as Level 3 in the fair value hierarchy due to the use of significant unobservable inputs. The fair value of the embedded derivative was calculated using a probability-weighted model incorporating management estimates for potential change in control, and by determining the fair value of the debt with and without the change in control provision included. The difference between the two fair values of the debt was determined to be the fair value of the embedded derivative. The debt was valued by comparing debt issues of similar companies with (i) terms of between 4.8 and 8.0 years, (ii) coupon rates of between 3.0% and 11.5% and (iii) market yields of between 10.7% and 27.7%. The initial fair value of the warrant derivative liability at the date of issuance in December 2012 was determined to be $14.6 million. The Company recognized a $0.02 million gain on change in fair value of derivative liability at December 31, 2012.
Segment and Geographical Information | Segment and Geographical Information For the years ended December 31, 2012, 2011 and 2010, the Company has reported its business as a single reporting segment. The Company’s chief decision maker, who is the Chief Executive Officer, regularly evaluates the Company on a consolidated basis.
Recent Accounting Pronouncements | Recent Accounting Pronouncements From time to time, new accounting pronouncements are issued by FASB and are adopted by the Company as of the specified effective date. The Company believes that the impact of other recently issued but not yet adopted accounting pronouncements will not have a material impact on consolidated financial position, results of operations, and cash flows, or do not apply to the Company’s operations.
Warrant |
Derivative Instruments | Warrant Derivative Liability The Company’s warrant derivative liability is carried at fair value and is classified as Level 3 in the fair value hierarchy due to the use of significant unobservable inputs. The initial fair value of the warrant derivative liability at the date of issuance in October 2009 was determined to be $48.3 million using the Black-Scholes option valuation model applying the following assumptions: (i) risk-free rate of 2.37%, (ii) remaining term of 5 years, (iii) no dividend yield, (iv) volatility of 119%, and (v) the stock price or the date of measurement. As of December 31, 2011, the fair value of the warrant derivative liability was determined to be $123.1 million using the Black-Scholes option valuation applying the following assumptions: (i) risk-free rate of 0.36%, (ii) remaining term of 2.8 years, (iii) no dividend yield (iv) volatility of 118%, and (v) the stock price or the date of measurement. A $22.6 million increase in the fair value of the warrants during the year, net of exercises was recognized as a $22.7 million loss on change in fair value of derivative liability and $(0.1) million compensation income for change in fair value of warrants issued to former employees, both amounts are included in the consolidated statement of operations for the year ended December 31, 2011. At December 31, 2012, the fair value of the warrant derivative liability was determined to be $54.9 million using the Black-Scholes option valuation model applying the following assumptions: (i) risk-free rate of 0.25%, (ii) remaining term of 1.8 years, (iii) no dividend yield (iv) volatility of 95%, and (v) the stock price on the date of measurement. The $35.6 million increase in the fair value of the warrants, net of exercises, was recognized as a $35.4 million loss on change in fair value of derivative liability and $0.2 million in compensation expense for change in fair value of warrants issued to former employees, both amounts are included in the consolidated statement of operations for the year ended December 31, 2012. The change in the fair value of the warrant derivative liabilities is as follows (in thousands):
|  | October 2009 Warrants |
Balance at December 31, 2009 |  | $ | 41,520 |
Loss on change in fair value of derivative liability |  |  | 205,153 |
Compensation expense for change in fair value of warrants issued to former employees |  |  | 5,713 |
Transfers to equity |  |  | (22,317 | )
Balance at December 31, 2010 |  | $ | 230,069 |
Loss on change in fair value of derivative liability |  |  | 22,669 |
Compensation income for change in fair value of warrants issued to former employees |  |  | (96 | )
Transfers to equity |  |  | (129,517 | )
Balance at December 31, 2011 |  | $ | 123,125 |
Initial measurement—December 2012 financing |  |  | — |
Loss (gain) on change in fair value of derivative liability |  |  | 35,367 |
Compensation expense for change in fair value of warrants issued to former employees |  |  | 247 |
Transfers to equity |  |  | (103,885 | )
Balance at December 31, 2012 |  | $ | 54,854 |
The fair value of this warrant liability is determined using the Black-Scholes option valuation model and is therefore sensitive to changes in the market price and volatility of our common stock among other factors. In the event of a hypothetical 10% increase in the market price of our common shares ($8.90 based on the $8.09 market price of our stock at December 31, 2012) on which the December 31, 2012 valuation was based, the value of the derivative liability would have increased by $6.4 million. Such increase would have been reflected as additional loss on change in fair value of the warrant derivative liability in our statement of operations. Significant increases (decreases) in this input in isolation would result in a significantly higher (lower) fair value asset measurement.

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