Quarterly report pursuant to Section 13 or 15(d)

Equity (Details Textual)

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Equity (Details Textual) (USD $)
0 Months Ended 1 Months Ended 0 Months Ended 1 Months Ended 3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 12 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 9 Months Ended 1 Months Ended 0 Months Ended 6 Months Ended 9 Months Ended
Jul. 07, 2014
Mar. 24, 2014
Dec. 09, 2013
Feb. 28, 2014
Dec. 27, 2013
Sep. 30, 2014
Apr. 28, 2014
Sep. 30, 2013
Jun. 30, 2014
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Jul. 10, 2014
Sep. 30, 2014
Employees, consultants and board members [Member]
Sep. 30, 2013
Employees, consultants and board members [Member]
Dec. 31, 2013
Employees, consultants and board members [Member]
Sep. 30, 2014
Employees, consultants and board members [Member]
Minimum [Member]
Sep. 30, 2014
Employees, consultants and board members [Member]
Maximum [Member]
Sep. 30, 2014
Investor [Member]
Jan. 10, 2014
Placement agent [Member]
Sep. 30, 2014
Placement agent [Member]
Jan. 31, 2014
Private Placement [Member]
Jan. 31, 2014
Warrant [Member]
Sep. 30, 2014
Warrant [Member]
Sep. 30, 2013
Warrant [Member]
Jan. 31, 2014
Common Stock [Member]
Sep. 30, 2014
Common Stock [Member]
Jan. 31, 2014
Common Stock [Member]
Placement agent [Member]
Jan. 31, 2014
Common Stock [Member]
Laidlaw and Co [Member]
Placement agent [Member]
Jul. 10, 2014
Public Offering [Member]
Jun. 30, 2014
Public Offering [Member]
Sep. 30, 2014
Stock Option Plan [Member]
Sep. 30, 2014
Stock Option Plan [Member]
Minimum [Member]
Sep. 30, 2014
Stock Option Plan [Member]
Maximum [Member]
Equity (Textual)                                                                    
Fair value of warrants determined utilizing the Black-Scholes option pricing model                                             $ 600,000         $ 200,000 $ 200,000           
Exercise price of warrants                                 $ 5.55 $ 11.66                   $ 6.00 $ 6.00          
Fair value assumptions, risk free interest rate                   1.07% [1]   1.27% [1]                                 1.64%          
Fair value assumptions, expected volatility rate                   74.00% [2]   73.00% [2]                                 88.00%       86.56% 87.76%
Fair value assumptions, expected term                   3 years 2 months 12 days   6 months   10 years                             5 years     6 years    
Fair value assumptions, expected dividend rate                      [3]      [3]                                 0.00%     0.00%    
Fair value assumptions, expected discount rate                                                                 1.84% 2.07%
Warrants issued to purchase common stock, shares                                     137,952   68,976               68,976          
Number of stock option granted                           200,000   312,500                               1,323,100    
Number of shares of restricted stock, granted                           602,907 180,000                                      
Number of additional stock option granted                                                           157,123        
Number of stock option cancelled                           50,000                                        
Description restricted stock                           Of the total shares of restricted stock granted, 20,000 shares vest 3 months from the grant date, 30,240 shares vest 1 year from the grant date, 202,667 shares have a vesting period of 4 years and 350,000 shares vest at the date of grant. The remaining restricted shares granted are performance based and upon the achievement of certain milestones.                                        
Share-based compensation term                                                               10 years    
Share-based Compensation vesting period                                                               4 years    
Fair value of stock option                                                               8,600,000    
Stock option exercise prices                                                               $ 0.96 $ 5.55 $ 11.95
Proceeds from the exercise of options                                           2,873,557               1,200,000   275,153    
Number of option exercised                                                               (310,400)    
Expense related to common stock granted           734,799   95,971   1,623,994 284,371                         98,224 0                  
Unrecognized compensation expense           10,953,856       10,953,856                                                
Net proceeds from the public offering                                       6,636,720                   12,600,000 11,451,250      
Price per share                         $ 7.50                   $ 9.00     $ 6.00         $ 7.50      
Common stock, par value           $ 0.001       $ 0.001   $ 0.001                                            
Common stock issued, shares 61,538           500                                     551,810 1,984,524     1,827,123 1,670,000      
Proceeds from common stock issued         3,325,860   6,000                                       116,936     13,700,000 12,525,000      
Underwriting discount                                                           13,700,000 876,750      
Underwriting agreement description     The agreement entered in on December 9, 2013 had similar terms as the 2012 agreement, including a cash fee equal to 10% of the gross proceeds raised, a non-accountable expense reimbursement equal to 2% of the gross proceeds raised and warrants to purchase shares of the Company's Common Stock in an amount equal to 10% of the shares of common stock issued or issuable. Subsequent to the closing of the 2013 offering, the placement agent continued to provide certain financial advisory services to the Company until three months after the Company had up-listed its securities for trading on a U.S. National Exchange for a monthly fee of $25,000.   Investors agreed to purchase (i) an aggregate of 554,310 shares ( the "Shares") of common stock at $6.00 per share and (ii) five-year warrants to purchase an aggregate of 138,577 shares of common stock at an exercise price of $9.00 per share. The Company received $3,325,860 in gross proceeds from the sale of securities.                                                   Under the terms of the underwriting agreement entered into with Canaccord Genuity Inc. as representative (the "Representative") of the several underwriters (collectively, the "Underwriters"), the Company also granted the Underwriters a 30-day option to purchase up to an additional 250,000 shares of common stock to cover over-allotments, if any, at the offering price.      
Proceeds from issuance of warrants                                           3,300,000                        
Placement agent cash fees     25,000                                     395,000                        
Placement agent attorney fees                                           40,000                        
Fair value adjustment       600,000         1,200,000                                                  
Warrants granted                                             137,952                      
Warrants exercised by warrant holders                   83,332                           2,117,304                    
Registration statement description   This Registration Statement contained two prospectuses: (i) a base prospectus which covers the offering, issuance and sale by the Company of up to $200,000,000 of its common stock, preferred stock, warrants and/or units; and (ii) a sales agreement prospectus covering the offering, issuance and sale by us of up to a maximum aggregate offering price of $75,000,000 of its common stock that may be issued and sold under a sales agreement (the "Sales Agreement") with MLV & Co. LLC ("MLV") dated March 24, 2014.                                                                
Maximum offering price   75,000,000                                                                
Aggregate offering amount of securities sold to investors   The Company will pay MLV in cash, upon the sale of common stock pursuant to the Sales Agreement, an amount equal to 3.0% of the gross proceeds from the sale of common stock. On April 28, 2014, the Company issued 500 shares and received net proceeds of $6,000 under the Sales Agreement with MLV.                                   Aggregate offering amount of securities sold to investors was increased from $6,000,000 to $6,636,720 in order to cover over-allotments                            
Other offering expenses                                                             125,000      
Auditor fees                                                             $ 72,000      
[1] The risk-free interest rate was determined by management using the Treasury Bill as of the respective measurement date.
[2] Because the Company does not have adequate trading history to determine its historical trading volatility, the volatility factor was estimated by management using the historical volatilities of comparable companies in the same industry and region.
[3] Management determined the dividend yield to be 0% based upon its expectation that it will not pay dividends for the foreseeable future.