Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensation (Details Narrative)

v3.5.0.2
Stock-Based Compensation (Details Narrative) - USD ($)
12 Months Ended
Mar. 31, 2016
Jul. 31, 2016
Jul. 31, 2015
Options granted to purchase shares [1]   2,729,250 608,501
Purchase price of incentive stock options as a percentage of its fair value   85.00%  
Exercise price per share, low end of the range [1]   $ 1.64  
Exercise price per share, high end of the range [1]   $ 16.10  
Stock-based compensation expense recognized   $ 6,100,000 $ 2,700,000
Weighted-average grant date fair value   $ 3.45 $ 5.57
Share based compensation shares issued  
unrecognized non-cash compensation cost   $ 5,000,000  
weighted average period   1 year 9 months 18 days  
weighted-average fair value of stock options vested   $ 5.69 $ 7.12
Shares Issued, Price Per Share $ 2.02    
Common shares outstanding [2]   18,036,263 14,820,854
Number of Shares Available for issuance   330,408  
Restricted Stock Units (RSUs) [Member]      
Common shares outstanding   655,000  
Research And Development Expense [Member]      
Stock-based compensation expense recognized   $ 1,000,000 $ 1,100,000
Research And Development Expense [Member] | Restricted Stock Units (RSUs) [Member]      
Stock-based compensation expense recognized   184,000 41,000
General And Administrative Expense [Member]      
Stock-based compensation expense recognized   5,100,000 $ 1,600,000
General And Administrative Expense [Member] | Restricted Stock Units (RSUs) [Member]      
Stock-based compensation expense recognized   $ 143,000  
Plan2011 [Member]      
Options granted to purchase shares   2,689,250  
Maximum percentage increase in number of share authorized, approved by shareholders   3.00%  
Maximum increase in number of shares authorized   500,000  
Maximum shares granted per fiscal year per individual   500,000  
Plan2011 [Member] | Minimum [Member]      
Purchase price of incentive stock options as a percentage of its fair value   100.00%  
Provisional percentage of outstanding stock owned by stockholders   10.00%  
Exercise price as a percentage of fair value of common stock   110.00%  
Plan2011 [Member] | Maximum [Member]      
Term of stock options   10 years  
Plan2011 [Member] | Employee, Director and Consultants [Member]      
Options granted to purchase shares   4,000,000  
Plan2011 [Member] | Employee, Director and Consultants [Member] | Restricted Stock Units (RSUs) [Member]      
Vesting period 3 years    
Plan2011 [Member] | Employee [Member]      
Options granted to purchase shares   1,995,750 491,001
Term of stock options   10 years 10 years
Vesting period   3 years  
Exercise price per share, low end of the range   $ 1.64 $ 5.60
Exercise price per share, high end of the range   $ 6.21 $ 10.60
Plan2011 [Member] | Employee [Member] | Restricted Stock Units (RSUs) [Member]      
Share based compensation shares issued 555,000    
Plan2011 [Member] | Employee [Member] | Minimum [Member]      
Vesting period     1 year
Plan2011 [Member] | Employee [Member] | Maximum [Member]      
Vesting period     3 years
Plan2011 [Member] | Director [Member]      
Options granted to purchase shares   655,500 37,500
Term of stock options   10 years  
Vesting period   1 year 1 year
Exercise price per share, low end of the range   $ 2.02  
Exercise price per share, high end of the range   $ 5.76 $ 7.60
Plan2011 [Member] | Director [Member] | Restricted Stock Units (RSUs) [Member]      
Share based compensation shares issued 100,000    
Plan2011 [Member] | Consultants [Member]      
Options granted to purchase shares   78,000 80,000
Exercise price per share, low end of the range   $ 2.02 $ 6.01
Exercise price per share, high end of the range   $ 5.76 $ 7.80
Plan2011 [Member] | Consultants [Member] | Restricted Stock Units (RSUs) [Member]      
Share based compensation shares issued 25,000    
Plan2011 [Member] | Consultants [Member] | Minimum [Member]      
Term of stock options   1 year 1 year
Plan2011 [Member] | Consultants [Member] | Maximum [Member]      
Term of stock options   3 years 3 years
2015 ESPP [Member]      
Purchase price of incentive stock options as a percentage of its fair value   85.00%  
Stock Issued During Period, Shares, Employee Stock Purchase Plans   500,000  
Discount from Market Price, Offering Date   15.00%  
Shares Purchased   17,789  
Purchase price   $ 1.44  
Number of Shares Available for issuance   482,211  
[1] Recast to reflect the 1-for-20 reverse stock split effected May 2015
[2] See Note 1, "Reverse Stock Split"