Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Details Textual)

v2.4.1.9
INCOME TAXES (Details Textual) (USD $)
 12 Months Ended
Dec. 31, 2014
Domestic Tax Authority [Member]  
Income Taxes [Line Items]  
Operating Loss Carryforwards $ 86,020,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
Net Operating Loss Carryforwards Expiration Period 2018 through 2033
Research And Development And Investment Tax Credits 2,690,000clrb_ResearchAndDevelopmentAndInvestmentTaxCredits
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember
Research And Development And Investment Tax Credits Expiration Period 2018 through 2032
State and Local Jurisdiction [Member]  
Income Taxes [Line Items]  
Operating Loss Carryforwards 34,553,000us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Net Operating Loss Carryforwards Expiration Period 2014 through 2033
Research And Development And Investment Tax Credits $ 1,142,000clrb_ResearchAndDevelopmentAndInvestmentTaxCredits
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Research And Development And Investment Tax Credits Expiration Period 2018 through 2027