Annual report pursuant to Section 13 and 15(d)

COMMITMENTS (Details Textual)

COMMITMENTS (Details Textual) (USD $)
1 Months Ended 12 Months Ended 1 Months Ended
Sep. 26, 2014
Jun. 30, 2014
Nov. 30, 2013
Dec. 31, 2014
Dec. 31, 2013
Jan. 31, 2015
Commitments and Officer Loans [Line Items]            
Increase Decrease In Lease Rental Expense   $ 14,200mtnb_IncreaseDecreaseInLeaseRentalExpense        
Security Deposit       300,000us-gaap_SecurityDeposit    
Lessor Leasing Arrangements, Operating Leases, Term of Contract     7 years      
Operating Leases, Rent Expense, Net, Total   12,723us-gaap_OperatingLeasesRentExpenseNet   95,500us-gaap_OperatingLeasesRentExpenseNet 0us-gaap_OperatingLeasesRentExpenseNet  
Security Deposits Reduced By Straight Line Basis Description       Starting May 1, 2015, this deposit can be reduced by $100,000 on an annual basis, down to $50,000, as long as the Company makes timely rental payments.    
Total Cost of Pharmacokinetic and Pharmacodynamic Study 2,000,000mtnb_TotalCostOfPharmacokineticAndPharmacodynamicStudy          
Payments on Pharmacokinetic and Pharmacodynamic Study 700,000mtnb_PaymentsOnPharmacokineticAndPharmacodynamicStudy          
Subsequent Event [Member]            
Commitments and Officer Loans [Line Items]            
Operating Leases, Rent Expense, Net, Total           $ 2,175us-gaap_OperatingLeasesRentExpenseNet
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