AGREEMENT AND PLAN OF MERGER (Details)	Jun. 29, 2016	Apr. 27, 2016 USD ($) director $ / shares	Jun. 30, 2016 director $ / shares	Sep. 30, 2015 $ / shares
Business Acquisition [Line Items]
Common stock, par value (in dollars per share) | $ / shares		$ 0.02	$ 0.02	$ 0.02
Termination fee | $		$ 1,820,281
Exercise price of warrants (in dollars per share) | $ / shares			$ 5.00
Number of members on board of directors			11
Co-Executive Chairman
Business Acquisition [Line Items]
Co-Executive Chairman Compensation Plan, extension term	30 days
Fortress
Business Acquisition [Line Items]
Termination fee | $		4,375,000
National Holdings Corporation and Fortress Biotech, Inc
Business Acquisition [Line Items]
Termination fee | $		$ 750,000
Merger Condition Not Satisfied
Business Acquisition [Line Items]
Duration of warrants		5 years
Exercise price of warrants (in dollars per share) | $ / shares		$ 3.25
Duration to distribute warrants to stockholders		90 days
Number of members on board of directors		7
Merger Condition Not Satisfied | Fortress
Business Acquisition [Line Items]
Number of members to appoint to board of directors		5
Merger Condition Satisfied
Business Acquisition [Line Items]
Number of members on board of directors		5
Merger Condition Satisfied | Fortress
Business Acquisition [Line Items]
Number of members to appoint to board of directors		3
Merger Closed | Fortress
Business Acquisition [Line Items]
Number of members to appoint to board of directors		2
National Holdings Corporation | Fortress
Business Acquisition [Line Items]
Merger Tender Offer, duration to complete after FINRA declares application		30 days
Share price for acquisition (in dollars per share) | $ / shares		$ 3.25
Percentage of shares required to hold (at least)		80.00%