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INCOME TAXES (Details 1) (USD $)
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Dec. 31, 2014
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Dec. 31, 2013
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| Deferred tax assets | ||
| Federal net operating loss | $ 29,246,965us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic | $ 25,731,718us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic |
| Federal research and development tax credit carryforwards | 2,689,775clrb_DeferredTaxAssetsTaxCreditCarryForwardsDomesticResearchAndDevelopment | 2,480,417clrb_DeferredTaxAssetsTaxCreditCarryForwardsDomesticResearchAndDevelopment |
| State net operating loss | 1,813,954us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal | 2,070,642us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal |
| State research and development tax credit carryforwards | 753,818clrb_DeferredTaxAssetsTaxCreditCarryForwardsStateAndLocalResearchAndDevelopment | 724,200clrb_DeferredTaxAssetsTaxCreditCarryForwardsStateAndLocalResearchAndDevelopment |
| Capitalized research and development expenses | 10,609,942clrb_DeferredTaxAssetsDeferredExpenseCapitalizedResearchAndDevelopmentCosts | 11,128,803clrb_DeferredTaxAssetsDeferredExpenseCapitalizedResearchAndDevelopmentCosts |
| Stock-based compensation expense | 1,758,909us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 1,599,005us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost |
| Intangible assets | 313,412us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets | 380,339us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets |
| Charitable contribution carryforwards | 0us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards | 34,850us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards |
| Accrued liabilities | 35,392us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 26,112us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities |
| Total deferred tax assets | 47,222,167us-gaap_DeferredTaxAssetsGross | 44,176,086us-gaap_DeferredTaxAssetsGross |
| Deferred tax liabilities | ||
| Depreciable assets | (245,785)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (257,314)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment |
| Total deferred tax liabilities | (245,785)us-gaap_DeferredIncomeTaxLiabilities | (257,314)us-gaap_DeferredIncomeTaxLiabilities |
| Net deferred tax assets | 46,976,382us-gaap_DeferredTaxAssetsNet | 43,918,772us-gaap_DeferredTaxAssetsNet |
| Less- valuation allowance | (46,976,382)us-gaap_DeferredTaxAssetsValuationAllowance | (43,918,772)us-gaap_DeferredTaxAssetsValuationAllowance |
| Total deferred tax assets | $ 0us-gaap_DeferredTaxAssetsLiabilitiesNet | $ 0us-gaap_DeferredTaxAssetsLiabilitiesNet |
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- Definition
Amount of deferred tax assets attributable to taxable temporary differences from research and development costs. No definition available.
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- Definition
Amount of deferred tax assets tax credit carry forwards domestic research and development. No definition available.
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- Definition
Amount of deferred tax assets tax credit carry forwards state and local research and development. No definition available.
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible charitable contribution carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from intangible assets including goodwill. No definition available.
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible state and local operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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