Mustang Bio, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Notes Payable (Details Textual)

v3.8.0.1

Notes Payable (Details Textual) - USD ($)	1 Months Ended			10 Months Ended	12 Months Ended
Notes Payable (Details Textual) - USD ($)	Jul. 05, 2016	Jul. 29, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Class of Warrants Or Rights Issued, Warrants Term		10 years
Interest Expense, Debt				$ 0	$ 8,000	$ 895,000
Amortization of Debt Discount (Premium)				0	$ 0	$ 763,000
Working Capital Promissory Note [Member] \| Fortress Biotech, Inc [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						8.00%
Notes Payable, Related Parties, Current						$ 320,000
Interest Expense, Debt				$ 168,000		$ 253,000
National Securities Corporation Note [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						8.00%
Interest Expense, Debt						$ 140,000
Percentage Of Contingently Issuable Warrants On Indebtedness Transferred	25.00%
Debt Instrument, Face Amount	$ 3,600,000
Debt Related Commitment Fees and Debt Issuance Costs	$ 129,000
Amortization of Debt Discount (Premium)						$ 763,000
Debt Instrument, Interest Rate, Effective Percentage	23.10%
Debt Instrument, Unamortized Discount	$ 634,000
National Securities Corporation Note [Member] \| Fortress Biotech, Inc [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Debt			$ 10,000,000

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