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           Formation and Reverse Acquisition of Matinas BioPharma Holdings - Merger (Details Textual) (USD $) 
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        1 Months Ended | |
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           May 31, 2013 
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           Jul. 31, 2013 
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| Formation And Reverse Acquisition [Line Items] | ||
| Stock Issued During Period, Shares, New Issues | 7,500,000us-gaap_StockIssuedDuringPeriodSharesNewIssues | |
| Investment Warrants, Exercise Price | $ 2.00invest_InvestmentWarrantsExercisePrice | |
| Merger [Member] | ||
| Formation And Reverse Acquisition [Line Items] | ||
| Stock Issued During Period, Shares, New Issues | 
9,000,000us-gaap_StockIssuedDuringPeriodSharesNewIssues / us-gaap_SubsidiarySaleOfStockAxis = mtnb_MergerMember  | 
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| Aggregate Common Stock Holding Percentage | 
28.50%mtnb_AggregateCommonStockHoldingPercentage / us-gaap_SubsidiarySaleOfStockAxis = mtnb_MergerMember  | 
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| Warrants Issued For Purchase Of Common Stock | 
1,000,000mtnb_WarrantsIsuuedForPurchaseOfCommonStock / us-gaap_SubsidiarySaleOfStockAxis = mtnb_MergerMember  | 
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| Investment Warrants, Exercise Price | 
$ 2.00invest_InvestmentWarrantsExercisePrice / us-gaap_SubsidiarySaleOfStockAxis = mtnb_MergerMember  | 
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- Definition 
          Exercise price of the warrants. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition 
          Represents the aggregate common stock holding percentage. No definition available. 
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- Details 
          
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- Definition 
          Represents the number of warrants issued for purchase of common stock during period. No definition available. 
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- Definition 
          Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
          
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