Quarterly report pursuant to Section 13 or 15(d)

Related Party Agreements (Details Textual)

v3.7.0.1
Related Party Agreements (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
May 15, 2017
Sep. 13, 2016
Jun. 12, 2015
Jun. 26, 2017
Feb. 17, 2015
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
May 17, 2017
Sep. 30, 2016
Mar. 15, 2015
Agreement Description Terms               (i) issue annually to Fortress, on the anniversary date of the Founders Agreement, shares of common stock equal to two and one half percent (2.5%) of the fully-diluted outstanding equity of Avenue at the time of issuance; (ii) pay an equity fee in shares of Avenue common stock, payable within five (5) business days of the closing of any equity or debt financing for Avenue or any of its respective subsidiaries that occurs after the effective date of the Founders Agreement and ending on the date when Fortress no longer has majority voting control in Avenues voting equity, equal to two and one half percent (2.5%) of the gross amount of any such equity or debt financing; and (iii) pay a cash fee equal to four and one half percent (4.5%) of Avenues annual net sales, payable on an annual basis, within ninety (90) days of the end of each calendar year. In the event of a change in control (as it is defined in the Founders Agreement), Fortress will be paid a one-time change in control fee equal to five (5x) times the product of (i) net sales for the twelve (12) months immediately preceding the change in control and (ii) four and one-half percent (4.5%).        
Interest Expense, Debt               $ 300,000        
Stock Issued During Period, Value, New Issues               948,000        
Stockholders' Equity, Period Increase (Decrease)               632,000        
IPO [Member]                        
Stock Issued During Period, Value, New Issues       $ 6,325,000                
Shares Issued, Price Per Share       $ 6.00                
Deferred Offering Costs       $ 2,300,000                
Common Stock [Member]                        
Stock Issued During Period, Value, New Issues               0        
Stockholders' Equity, Period Increase (Decrease)               0        
Fortress Note [Member]                        
Annual Consulting Fee               300,000        
Debt Instrument, Interest Rate, Stated Percentage                       8.00%
Long-term Debt           $ 3,500,000   3,500,000        
Interest Expense, Debt           $ 16,000 $ 43,000 74,000 $ 72,000      
Fortress Note [Member] | Maximum [Member]                        
Annual Consulting Fee               $ 400,000        
Debt Instrument, Interest Rate, Stated Percentage           8.00%   8.00%   8.00%    
Fortress Note [Member] | Minimum [Member]                        
Annual Consulting Fee               $ 100,000        
Debt Instrument, Interest Rate, Stated Percentage           2.00%   2.00%   2.00%    
Fortress Note [Member] | IPO [Member]                        
Stock Issued During Period, Value, New Issues       $ 158,125                
Stockholders' Equity, Period Increase (Decrease) $ 500,000                      
Percentage Of Conversion Shares       2.50%                
National Holdings, Inc. [Member]                        
Long-term Debt                     $ 3,000,000  
Business Acquisition, Percentage of Voting Interests Acquired                     56.60%  
Placement Fee, Percentage                     10.00%  
Chord Advisors, LLC [Member]                        
Annual Advisory Service Fee     $ 7,500     $ 23,000 15,000 $ 38,000 30,000      
Chord Advisors, LLC [Member] | Prior to Public Company [Member]                        
Annual Advisory Service Fee     $ 5,000                  
Asset Management Income [Member]                        
Annual Consulting Fee         $ 500,000 $ 100,000 $ 100,000 $ 300,000 $ 300,000      
Increase In Annual Consulting Fee         1,000,000              
Excess In Net Assets Value         100,000,000              
Asset Management Income [Member] | IPO [Member]                        
Stock Issued During Period, Value, New Issues       $ 166,666                
Due to Related Parties, Current       $ 1,000,000                
Shares Issued, Price Per Share       $ 6.00                
AR Founders Agreement [Member]                        
Amended Founders Agreements Terms   15 years                    
AR Founders Agreement [Member] | Common Stock [Member]                        
Number of shares Exchanged   2,500,000                    
Fortress Biotech, Inc [Member]                        
Long-term Debt, Gross         $ 3,000,000              
Preferred Class A [Member] | AR Founders Agreement [Member]                        
Number of shares Exchanged   83,333                    
Common Class A [Member] | AR Founders Agreement [Member]                        
Number of shares Exchanged   2,300,000