2.2.0.7 false Convertible Senior Subordinated Notes 0209 - Disclosure - Convertible Senior Subordinated Notes true false false false 1 USD false false USD Standard http://www.xbrl.org/2003/iso4217 USD iso4217 0 USDEPS Divide http://www.xbrl.org/2003/iso4217 USD iso4217 http://www.xbrl.org/2003/instance shares xbrli 0 Shares Standard http://www.xbrl.org/2003/instance shares xbrli 0 $ 2 Convertible Senior Subordinated Notes [Abstract] 0 us-gaap_ConvertibleSubordinatedDebtCurrentAndNoncurrentAbstract us-gaap true na duration No definition available. false false false false false true false false false false false false 1 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 3 CONVERTIBLE SENIOR SUBORDINATED NOTES 1 dndn_ConvertibleSeniorSubordinatedNotesTextBlock dndn false na duration Convertible Senior Subordinated Notes. false false false false false false false false false false false verboselabel false 1 false false false false 0 0   <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 12pt"><b>9. CONVERTIBLE SENIOR SUBORDINATED NOTES</b> </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     In June and July 2007, an aggregate of $85.3 million of the Notes were sold in a private placement to qualified institutional buyers. Proceeds from the offering, after deducting placement fees and our estimated expenses, were approximately $82.3 million. The Notes were issued at face principal amount and pay interest semi-annually in arrears on June 15 and December 15 of each year. Record dates for payment of interest on the Notes are each June 1st and December 1st. In certain circumstances, additional amounts may become due on the Notes as additional interest. We can elect that the sole remedy for an event of default for our failure to comply with the “reporting obligations” provisions of the indenture under which the Notes were issued (the “Indenture”), for the first 180 days after the occurrence of such event of default would be for the holders of the Notes to receive additional interest on the Notes at an annual rate equal to 1% of the outstanding principal amount of the Notes. We recorded interest expense, including the amortization of debt issuance costs related to the Notes, of $1.5 million and $1.4 million during the six months ended June 30, 2010 and 2009, respectively. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     The Notes are convertible into our common stock, initially at the conversion price of $10.28 per share, equal to a conversion rate of approximately 97.2644 shares per $1,000 principal amount of the Notes, subject to adjustment. There may be an increase in the conversion rate of the Notes under certain circumstances described in the Indenture; however, the number of shares of common stock issued will not exceed 114.2857 per $1,000 principal amount of the Notes. A holder that converts Notes in connection with a “fundamental change,” as defined in the Indenture, may in some circumstances be entitled to an increased conversion rate (i.e., a lower per share conversion price) as a make whole premium. If a fundamental change occurs, holders of the Notes may require us to repurchase all or a portion of their Notes for cash at a repurchase price equal to 100% of the principal amount of the Notes to be repurchased, plus any accrued and unpaid interest and other amounts due thereon. The Indenture contains customary covenants. </div>   </div>  <div style="font-family: 'Times New Roman',Times,serif"> <div align="left" style="font-size: 10pt; margin-top: 6pt">     In April 2009, $11.5 million in principal amount of the Notes were converted by holders of the Notes, resulting in the issuance of approximately 1.1 million shares of common stock. In May 2009, we exchanged an aggregate of 2,137,411 shares of our common stock for $21.2 million in aggregate principal face amount of the Notes held by holders of the Notes. </div> <div align="left" style="font-size: 10pt; margin-top: 6pt">     We have identified embedded derivatives associated with the Notes and are accounting for these embedded derivatives accordingly. These embedded derivatives meet certain criteria and are therefore not required to be accounted for separately from the Notes. </div> </div>  <!-- Begin Block Tagged Note false false false us-types:textBlockItemType textblock Convertible Senior Subordinated Notes. No authoritative reference available. false 1 2 false UnKnown UnKnown UnKnown false true