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Significant Accounting Policies
6 Months Ended
Jun. 30, 2012
Significant Accounting Policies [Abstract]  
Significant Accounting Policies
Note 2. Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires that management make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amount of revenue earned and expenses incurred during the reporting period. Actual results could differ from those estimates.

 

Revenue Recognition and Deferred Program Fee Revenue

Revenue is recognized when there is persuasive evidence that an arrangement exists, delivery has occurred, the price is fixed or determinable, and collection is reasonably assured.

We recognize program fee revenue, collaboration revenue and milestone revenue in connection with the Pfizer Agreements. Program fee revenue is derived from program fee payments we received under the Pfizer Agreements. These payments are recognized from receipt ratably over our estimate of the development period through the fourth of four drug candidates expected to be developed. We currently estimate the development period for all four drug candidates to end by September 30, 2016. We periodically review the estimated development period and change it if appropriate based upon our latest expectations. Deferred program fee revenue represents the amount of the upfront program fee payments that have not yet been recognized as revenue.

Collaboration revenue from reimbursement of development expenses are generally recognized after expenses have been incurred and when King has completed its review of the expenses invoiced to them.

We recognize milestone payments as revenue when we achieve the underlying developmental milestone as the milestone payments are not dependent upon any other future activities or achievement of any other future milestones and the achievement of each of the developmental milestones were substantively at risk and contingent at the effective date of the collaboration. Substantial effort is involved in achieving each of the developmental milestones. These milestones represent the culmination of discrete earnings processes and the amount of each milestone payment is reasonable in relation with the level of effort associated with the achievement of the milestone. Each milestone payment is non-refundable and non-creditable when made. The ongoing research and development services we provide are priced at fair value based upon the reimbursement of expenses we incur.

Cash, Cash Equivalents and Concentration of Credit Risk

We consider all highly liquid financial instruments with original maturities of three months or less to be cash equivalents. Cash and cash equivalents consist of cash maintained at two financial institutions and in money market funds. We believe the financial risks associated with these instruments are minimal. We have not experienced material losses from our investments in these securities.

Marketable Securities and Fair Value Measurements

We invest in interest bearing marketable securities, generally consisting of corporate and government securities. We may elect to sell these investments before they mature. Therefore, we hold these investments as “available for sale” and include these investments in our balance sheets as current assets, even though the contractual maturity of a particular investment may be beyond one year. We report our marketable securities at fair value, which may include unrealized gains and losses. Our unrealized gains and losses on investments are recorded as a separate component of stockholders’ equity as accumulated other comprehensive income or loss. We recognize all realized gains and losses on our marketable securities in interest income in the accompanying statement of operations on a specific identification basis. We report changes in net unrealized gains or losses on marketable securities in our Statements of Comprehensive Income. Our marketable securities are maintained at two financial institutions and are governed by our investment policy as approved by our Board of Directors.

To date we have not recorded any impairment charges on marketable securities related to other-than-temporary declines in market value. We would recognize an impairment charge when the decline in the estimated fair value of a marketable security below the amortized cost is determined to be other-than-temporary. We consider various factors in determining whether to recognize an impairment charge, including materiality, any adverse changes in the investees’ financial condition, how long the fair value has been below the amortized cost and whether it is more likely than not that we would elect to or be required to sell the marketable security before its anticipated recovery.

We measure our cash equivalents and marketable securities at fair value on a recurring basis. We use significant observable inputs where there are identical or comparable assets in the market to use in establishing our fair value measurements, including but not limited to benchmark yields, reported trades, broker/dealer quotes and issuer spreads. We consider these inputs to be Level 2 inputs. Generally, the types of instruments we invest in are not traded on a market such as the NASDAQ Global Market, which we would consider to be Level 1 inputs. We do not have any investments that would require inputs considered to be Level 3. We use the bid price to establish fair value where a bid price is available.

Stock-based Compensation

We recognize expense in the statement of operations for the fair value of all share-based payments, including grants of employee stock options and other share based awards. For stock options, we use the Black-Scholes option valuation model and the single-option award approach and straight-line attribution method. Using this approach, the compensation cost is amortized on a straight-line basis over the vesting period of each respective stock option, generally four years. We estimate forfeitures and adjust this estimate periodically based on the extent to which future actual forfeitures differ, or are expected to differ, from such estimates.

We have granted share-based awards that vest upon achievement of certain performance criteria, or Performance Awards. The value of these awards is the product of the number of shares of our common stock to be issued under the award multiplied by the fair market value of a share of our common stock on the date of grant. These awards include future performance criteria. We estimate an implicit service period for achieving these performance criteria. Performance Awards vest and common stock is issued on achieving performance criteria. We recognize stock-based compensation expense for Performance Awards when we conclude that achieving performance criteria is probable. We periodically review and update as appropriate our estimates of the implicit service periods and the likelihood of achieving the performance criteria.

Net Loss per Share

Basic net loss per share is computed on the basis of the weighted-average number of common shares outstanding for the reporting period. Diluted net loss per share is computed on the basis of the weighted-average number of common shares outstanding plus dilutive potential common shares outstanding using the treasury-stock method. Potential dilutive common shares consist of outstanding stock options, restricted stock units and warrants.

 

The numerators and denominators in the calculation of basic and diluted net loss per share were as follows (in thousands except per share data):

 

                                 
    Three months ended
June 30,
    Six months ended
June 30,
 
    2012     2011     2012     2011  

Numerator

                               

Net loss

  $ (130   $ (1,200   $ (101   $ (1,407

Denominator

                               

Weighted-average shares used in computing net loss per share, basic and diluted

    44,777       44,190       44,754       43,660  
   

 

 

   

 

 

   

 

 

   

 

 

 

Net loss per share, basic and diluted

  $ (0.00   $ (0.03   $ (0.00   $ (0.03
   

 

 

   

 

 

   

 

 

   

 

 

 

We excluded weighted options outstanding to purchase common stock of 10.2 million for the second quarter of 2012, 5.1 million for the second quarter of 2011, 11.3 million for the first half of 2012, and 9.6 million for the first half of 2011 from the calculation of diluted net loss per share because the effect of including these shares in this calculation would be anti-dilutive.

Income Taxes

We make estimates and judgments in determining the need for a provision for income taxes, including the estimation of our taxable income or loss for each full fiscal year. We have accumulated significant deferred tax assets. Deferred income taxes reflect the tax effects of net operating loss and tax credit carryovers and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. Realization of certain deferred tax assets is dependent upon future earnings. We are uncertain about the timing and amount of any future earnings. Accordingly, we offset these net deferred tax assets with a valuation allowance. We may in the future determine that more of our deferred tax assets will likely be realized, in which case we will reduce our valuation allowance in the quarter in which such determination is made. If the valuation allowance is reduced, we may recognize a benefit from income taxes in our statement of operations in that period. We classify interest recognized pursuant to our deferred tax assets as interest expense, when appropriate.