Fortress Biotech, Inc. Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

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

Related Party Transactions (Narrative) (Details)

v3.25.3

Related Party Transactions (Narrative) (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 05, 2024	Aug. 31, 2020	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Related Party Transactions
Preferred Stock, shares outstanding			3,427,138		3,427,138		3,427,138
Preferred Stock Liquidating Preference			$ 25		$ 25		$ 25
Related Party
Related Party Transactions
Revenue - related party						$ 41,000
Shared Services Agreement \| TGTX \| Related Party
Related Party Transactions
Revenue - related party			$ 100,000	$ 100,000	$ 700,000	800,000
Company owed amount			$ 41,000		$ 41,000
Desk Share Agreements \| TGTX
Related Party Transactions
Percentage of Rentable Area					65.00%
New York, NY Office Space \| Desk Share Agreements \| TGTX
Related Party Transactions
Operating lease term			5 years		5 years
Total payment for rent			$ 700,000	700,000	$ 2,000,000	2,200,000
New York, NY Office Space \| Desk Share Agreements \| TGTX \| Related Party
Related Party Transactions
Revenue - related party			500,000	500,000	1,400,000	1,400,000
Company owed amount			0		0
Journey \| Related Party
Related Party Transactions
Proceeds from Related Party Agreement			9,000	$ 8,000	31,000	$ 26,000
Company owed amount			$ 800,000		$ 800,000
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value
Related Party Transactions
Dividend rate percentage	9.375%
9.375% Series A Cumulative Redeemable Perpetual Preferred Stock, $0.001 par value \| Cyprium \| Related Party
Related Party Transactions
Issuance of common stock for equity offering, net (in shares)		320,000
Dividend rate percentage		9.375%
Preferred Stock, shares outstanding			320,000		320,000
Monthly cash dividend		$ 0.19531
Annual cash dividend payable		2.34375
Preferred Stock Liquidating Preference		$ 25

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