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COMMITMENTS AND CONTINGENT LIABILITIES (Details Textual) (Yissum [Member], USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2012
Yissum [Member]
  
Commitments And Contingent Liabilities [Line Items]  
Long-term Purchase Commitment, Period 20 years
Licenses Revenue Percentage 4.00%cltx_LicensesRevenuePercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cltx_YissumMember
Royalty Revenue Percentage 18.00%cltx_RoyaltyRevenuePercentage
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cltx_YissumMember
Litigation Settlement, Amount $ 70us-gaap_LitigationSettlementAmount
/ us-gaap_RelatedPartyTransactionsByRelatedPartyAxis
= cltx_YissumMember