Fortress Biotech, Inc. Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Equity (Details Textual)

Equity (Details Textual) (USD $)	1 Months Ended	10 Months Ended	12 Months Ended				78 Months Ended							1 Months Ended		1 Months Ended		1 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended		1 Months Ended		12 Months Ended
Equity (Details Textual) (USD $)	Jun. 30, 2012	Oct. 31, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2012	Oct. 05, 2012	Aug. 16, 2012	Nov. 15, 2011	Jun. 01, 2007	Dec. 31, 2012 Warrants [Member]	Dec. 31, 2011 Warrants [Member]	Jun. 30, 2007 PBS [Member]	Jun. 01, 2007 PBS [Member]	Jun. 30, 2007 Stock Incentive Plan [Member]	Jun. 01, 2007 Stock Incentive Plan [Member]	Nov. 30, 2011 Convertible Series A Preferred Stock [Member]	Dec. 31, 2012 Convertible Series A Preferred Stock [Member]	Apr. 26, 2012 Convertible Series A Preferred Stock [Member]	Dec. 31, 2011 Convertible Series A Preferred Stock [Member]	Nov. 30, 2011 Convertible Series B Preferred Stock [Member]	Dec. 31, 2012 Convertible Series B Preferred Stock [Member]	Jan. 07, 2011 Convertible Series B Preferred Stock [Member]	Nov. 30, 2011 Convertible Series C Preferred Stock [Member]	Jun. 30, 2011 Convertible Series C Preferred Stock [Member]	Dec. 31, 2012 Convertible Series C Preferred Stock [Member]	Dec. 31, 2011 Convertible Series C Preferred Stock [Member]
Equity (Textual) [Abstract]
Convertible preferred stock, authorized number of shares																			15,000,000
Preferred Stock, par value																			$ 0.001
Preferred Stock, shares outstanding																			0		0
Convertible Preferred Stock, conversion rate																			1				1				1
Preferred Stock, Liquidation Preference, Per Share amount																			$ 12.59				$ 8.39				$ 8.39
Preferred Stock, Liquidation Preference as percentage of issuance price																			150.00%				150.00%				150.00%
Convertible Preferred Stock issued, Shares																								2,525,677		4,612,624
Proceeds from issuance of Convertible Preferred Stock																										$ 22,900,000
Convertible Preferred Stock, Terms of Automatic Conversion																			Additionally, each Series A Share would automatically convert into one share of Common Stock upon the earlier of the following: (1) April 26, 2012, or (2)In the event the Company’s capital stock becomes publicly traded and reached certain price levels.				Additionally, each Series B Shares would automatically convert into one share of Common Stock upon the effective date of a registration statement covering the resale of the underlying Common Stock. This conversion occurred on November 15, 2011 upon the effectiveness of the Company’s Form S-1.				Additionally, each Series C Share would automatically convert into one share of Common Stock upon the effective date of a registration statement covering the resale of the underlying Common Stock. This conversion occurred on November 15, 2011 upon the effectiveness of the Company’s Form S-1. At December 31, 2012 and 2011, there were 584,390 and 587,376Series C Shares authorized and reserved for issuance of Common Stock, respectively, including 458,277 and 461,263 shares, respectively, upon exercise of the warrants for Series C Shares originally issued to National Securities Corporation (“NSC”), which Series C Shares will automatically convert to Common Stock immediately upon exercise of such warrants.
Series C Preferred Stock, authorized and reserved for future issuance upon exercise of warrants																											584,390	587,376
Preferred Stock, Special dividend rate as percentage of issuance price																			50.00%
Preferred Stock, Special dividend rate on offering price, equivalent value per share																			$ 4.20
Preferred Stock, Right to Board of Directors to issue additional shares			5,000,000				5,000,000
Declared a dividend for Series A Convertible Preferred Stock																				2,178,917
Fair value of the Common Stock			5,900,000
Preferred Stock Issuance, Price Per Share																										$ 5.59
Fair value of the Common Stock per share																			$ 2.69
Convertible Preferred stock number of preferred stock converted into common stock																		4,357,855				2,525,677			4,612,624
Common Stock, par value			$ 0.001	$ 0.001			$ 0.001								$ 0.001
Shares of restricted Common Stock were granted to certain employees															2,180,000		457,170
Vesting period of restricted Common Stock														3 years		3 years
Issued warrants to purchase common stock									20,000
Common Stock resale			24,400,754	18,604,245			24,400,754	3,361
Common stock reserve for future issuance of warrant												458,277	461,263
Equity (Additional Textual) [Abstract]
Preferred Stock, Right to Board of Directors to issue additional shares			5,000,000				5,000,000
Convertible Preferred Stock, Common stock issued upon conversion										11,496,186
Common stock, Authorized number of shares			50,000,000	50,000,000			50,000,000
Fully Vested Common stock issued to founders											2,125,096
Fully Vested Common stock issued to founders, par value											$ 0.001
Compensation expense related to the restricted Common Stock					2,000,000
Aggregate Restricted Stock Expense from inception date							2,100,000
Fully vested Common Stock issued for compensation of past services					23,836	5,000
Fully vested Common Stock issued for compensation of past services, Fair Value					82,000
Number of Shares, Options exercised				138,080
Proceeds from Stock Options Exercised				193,000
Public offering of Common Stock, shares	5,750,000		3,361
Common Stock issued under public offer, over allotment issued to underwriters	750,000
Common Stock issued during the period, price per share	$ 5.00
Proceeds from issuance of common stock Net of underwriting commissions and other offering expenses	26,400,000
Issuance of Common Stock for cash, Amount		19,000	28,750,000
Common Stock having an aggregate offering price			$ 24,000	$ 19,000			$ 24,000	$ 30,000,000