2.2.0.25falsefalse0120 - Statement - Consolidated Statements of OperationstruefalseIn Thousands, except Per Share datafalse1falsefalseUSDfalsefalse1/1/2010 - 12/31/2010 USD ($) USD ($) / shares $Jan-01-2010_Dec-31-2010http://www.sec.gov/CIK0001107332duration2010-01-01T00:00:002010-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2falsefalseUSDfalsefalse1/1/2009 - 12/31/2009 USD ($) USD ($) / shares $TwelveMonthsEnded_31Dec2009http://www.sec.gov/CIK0001107332duration2009-01-01T00:00:002009-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$3falsefalseUSDfalsefalse1/1/2008 - 12/31/2008 USD ($) USD ($) / shares $TwelveMonthsEnded_31Dec2008http://www.sec.gov/CIK0001107332duration2008-01-01T00:00:002008-12-31T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170SharesStandardhttp://www.xbrl.org/2003/instancesharesxbrli0USDEPSDividehttp://www.xbrl.org/2003/iso4217USDiso4217http://www.xbrl.org/2003/instancesharesxbrli0USDUSD$2true0us-gaap_IncomeStatementAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseConsolidated Statements of Operations [Abstract]3false0us-gaap_Revenuesus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse4805700048057falsetruefalsefalsefalse2truefalsefalse101000101falsetruefalsefalsefalse3truefalsefalse111000111falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate revenue recognized during the period (derived from goods sold, services rendered, insurance premiums, or other activities that constitute an entity's earning process). For financial services companies, also includes investment and interest income, and sales and trading gains.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 1 -Article 5 falsefalseRevenue4false0us-gaap_CostOfRevenueus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse2852000028520falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe aggregate cost of goods produced and sold and services rendered during the reporting period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 2 -Article 5 truefalseCost of revenue5false0us-gaap_GrossProfitus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse1953700019537falsefalsefalsefalsefalse2truefalsefalse101000101falsefalsefalsefalsefalse3truefalsefalse111000111falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryAggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.No authoritative reference available.falsefalseGross profit6true0us-gaap_OperatingExpensesAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseOperating expenses:7false0us-gaap_ResearchAndDevelopmentExpenseus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse7594100075941falsefalsefalsefalsefalse2truefalsefalse6158600061586falsefalsefalsefalsefalse3truefalsefalse5008600050086falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 51 -Subparagraph g Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 2 -Paragraph 12, 13 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 86 -Paragraph 11, 12 falsefalseResearch and development8false0us-gaap_GeneralAndAdministrativeExpenseus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse235760000235760falsefalsefalsefalsefalse2truefalsefalse3855600038556falsefalsefalsefalsefalse3truefalsefalse2050300020503falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.No authoritative reference available.truefalseSelling, general and administrative9false0us-gaap_OperatingExpensesus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse311701000311701falsefalsefalsefalsefalse2truefalsefalse100142000100142falsefalsefalsefalsefalse3truefalsefalse7058900070589falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryGenerally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense.No authoritative reference available.truefalseTotal operating expenses10false0us-gaap_OperatingIncomeLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-292164000-292164falsefalsefalsefalsefalse2truefalsefalse-100041000-100041falsefalsefalsefalsefalse3truefalsefalse-70478000-70478falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe net result for the period of deducting operating expenses from operating revenues.No authoritative reference available.falsefalseLoss from operations11true0us-gaap_NonoperatingIncomeExpenseAbstractus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseOtherxbrli:stringItemTypestringNo definition available.falsefalseOther income (expense):12false0us-gaap_InvestmentIncomeInterestus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse11440001144falsefalsefalsefalsefalse2truefalsefalse964000964falsefalsefalsefalsefalse3truefalsefalse36190003619falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryIncome derived from investments in debt securities and on cash and cash equivalents the earnings of which reflect the time value of money or transactions in which the payments are for the use or forbearance of money.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 14 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Article 5 falsefalseInterest income13false0us-gaap_InterestExpenseus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegated1truefalsefalse-1588000-1588falsefalsefalsefalsefalse2truefalsefalse-2321000-2321falsefalsefalsefalsefalse3truefalsefalse-5156000-5156falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe cost of borrowed funds accounted for as interest that was charged against earnings during the period.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 34 -Paragraph 21 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher OTS -Name Federal Regulation (FR) -Number Title 12 -Chapter V -Section 563c.102 -Paragraph 9 -Subsection II Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 falsefalseInterest expense14false0dndn_GainsLossesOnConversionOfDebtdndnfalsecreditdurationGains losses on conversion of debt.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-4716000-4716falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryGains losses on conversion of debt.No authoritative reference available.falsefalseLoss on debt conversion15false0dndn_LossFromValuationOfWarrantLiabilitydndnfalsedebitdurationLoss from valuation of warrant liability.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegatedtotal1truefalsefalse-142567000-142567falsefalsefalsefalsefalse2truefalsefalse-118763000-118763falsefalsefalsefalsefalse3truefalsefalse371000371falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryLoss from valuation of warrant liability.No authoritative reference available.truefalse(Loss) gain from valuation of warrant liability16false0us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalseverboselabel1truefalsefalse-439891000-439891falsefalsefalsefalsefalse2truefalsefalse-220161000-220161falsefalsefalsefalsefalse3truefalsefalse-71644000-71644falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetarySum of operating profit and nonoperating income (expense) before income (loss) from equity method investments, income taxes, extraordinary items, cumulative effects of changes in accounting principles, and noncontrolling interest.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1(i) -Article 4 falsefalseNet loss before income tax benefit17false0us-gaap_IncomeTaxExpenseBenefitus-gaaptruedebitdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsetruenegatedtotal1truefalsefalse411000411falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe sum of the current income tax expense (benefit) and the deferred income tax expense (benefit) pertaining to continuing operations.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 109 -Paragraph 45 -Subparagraph a, b truefalseIncome tax benefit18false0us-gaap_NetIncomeLossus-gaaptruecreditdurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse-439480000-439480falsetruefalsefalsefalse2truefalsefalse-220161000-220161falsetruefalsefalsefalse3truefalsefalse-71644000-71644falsetruefalsefalsefalseMonetaryxbrli:monetaryItemTypemonetaryThe portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 19 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph d Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph A7 -Appendix A Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 38 -Subparagraph a Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 20 -Article 9 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 130 -Paragraph 10, 15 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 87-21 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 28, 29, 30 truefalseNet loss19false0dndn_BasicAndDilutedNetLossPerSharedndnfalsenadurationBasic and diluted net loss per share.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse-3.18-3.18falsetruefalsefalsefalse2truefalsefalse-2.04-2.04falsetruefalsefalsefalse3truefalsefalse-0.79-0.79falsetruefalsefalsefalseEPSus-types:perShareItemTypedecimalBasic and diluted net loss per share.No authoritative reference available.truetrueBasic and diluted net loss per share20false0dndn_SharesUsedInComputationOfBasicAndDilutedNetLossPerSharedndnfalsenadurationShares used in computation of basic and diluted net loss per share.falsefalsefalsefalsefalsefalsefalsefalsefalsefalsetotallabel1truefalsefalse138206000138206falsefalsefalsefalsefalse2truefalsefalse108050000108050falsefalsefalsefalsefalse3truefalsefalse9035700090357falsefalsefalsefalsefalseSharesxbrli:sharesItemTypesharesShares used in computation of basic and diluted net loss per share.No authoritative reference available.truefalseShares used in computation of basic and diluted net loss per share319Consolidated Statements of Operations (USD $)ThousandsThousandsNoRoundingUnKnownfalsetrue