2015 Private Placement Funding (Details Textual) (USD $)
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3 Months Ended |
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Mar. 31, 2015
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Mar. 31, 2014
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Dec. 31, 2014
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Private Placement Funding [Line Items] |
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Common Stock, Par or Stated Value Per Share |
$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare
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$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare
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Effectiveness Of Registration Statement Description |
If the Registration Statement is not filed on or before the Filing Deadline or not declared effective on or before the Effectiveness Deadline, the Company shall pay to each holder of registerable securities purchased in the 2015 Private Placement an amount in cash equal to one-half of one percent (0.5%) of such holders investment amount on every thirty (30) day anniversary of such Filing Deadline or Effectiveness Deadline failure until such failure is cured. The payment amount shall be prorated for partial thirty (30) day periods. The maximum aggregate amount of payments to be made by the Company as the result of such failures, whether by reason of a Filing Deadline failure, Effectiveness Deadline failure or any combination thereof, shall be an amount equal to 6% of each holders investment amount.
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Proceeds from Issuance of Common Stock |
$ 4,937,500us-gaap_ProceedsFromIssuanceOfCommonStock
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$ 0us-gaap_ProceedsFromIssuanceOfCommonStock
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Proceeds from Issuance of Common Stock, Net |
4,282,734mtnb_ProceedsFromIssuanceOfCommonStockNet
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Warrant [Member] |
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Private Placement Funding [Line Items] |
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Number Of Units Issued In Offering |
20,000,000mtnb_NumberOfUnitsIssuedInOffering / us-gaap_StatementEquityComponentsAxis = us-gaap_WarrantMember
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Minimum [Member] |
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Private Placement Funding [Line Items] |
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Class of Warrant or Right, Exercise Price of Warrants or Rights |
$ 0.50us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_RangeAxis = us-gaap_MinimumMember
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2015 Private Placement [Member] |
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Private Placement Funding [Line Items] |
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Share Price |
$ 0.50us-gaap_SharePrice / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Common Stock, Par or Stated Value Per Share |
$ 0.0001us-gaap_CommonStockParOrStatedValuePerShare / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Class of Warrant or Right, Exercise Price of Warrants or Rights |
$ 0.75us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1 / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Warrant To Purchase Common Stock Period |
5 years
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Number Of Units Issued In Offering |
20,000,000mtnb_NumberOfUnitsIssuedInOffering / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Payments for Repurchase of Common Stock |
10,000,000us-gaap_PaymentsForRepurchaseOfCommonStock / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Deferred Offering Costs |
8,500,000us-gaap_DeferredOfferingCosts / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Placement Agent Fees |
1,000,000mtnb_PlacementAgentFees / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Non Accountable Expense Allowance |
$ 300,000mtnb_NonAccountableExpenseAllowance / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Warrant Solicitation Fee Percentage |
5.00%mtnb_WarrantSolicitationFeePercentage / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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2015 Private Placement [Member] | Exercise Price One [Member] |
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Private Placement Funding [Line Items] |
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Warrants Issued For Purchase Of Common Stock |
2,000,000mtnb_WarrantsIsuuedForPurchaseOfCommonStock / mtnb_ExercisePriceAxis = mtnb_ExercisePriceOneMember / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Investment Warrants, Exercise Price |
$ 0.50invest_InvestmentWarrantsExercisePrice / mtnb_ExercisePriceAxis = mtnb_ExercisePriceOneMember / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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2015 Private Placement [Member] | Exercise Price Two [Member] |
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Private Placement Funding [Line Items] |
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Warrants Issued For Purchase Of Common Stock |
2,000,000mtnb_WarrantsIsuuedForPurchaseOfCommonStock / mtnb_ExercisePriceAxis = mtnb_ExercisePriceTwoMember / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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Investment Warrants, Exercise Price |
$ 0.75invest_InvestmentWarrantsExercisePrice / mtnb_ExercisePriceAxis = mtnb_ExercisePriceTwoMember / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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2015 Private Placement [Member] | Minimum [Member] |
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Private Placement Funding [Line Items] |
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Closing Bid Price Of Common Stock |
$ 3.00mtnb_ClosingBidPriceOfCommonStock / us-gaap_RangeAxis = us-gaap_MinimumMember / us-gaap_SubsidiarySaleOfStockAxis = mtnb_TwothousandFifteenPrivatePlacementMember
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