Contractual Commitments: (Details Textual)
1 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Nov. 01, 2014
USD ($)
$ / shares
shares
Sep. 12, 2014
USD ($)
$ / shares
shares
Sep. 04, 2014
USD ($)
ft²
Jun. 02, 2014
USD ($)
$ / shares
Feb. 28, 2015
USD ($)
Jan. 17, 2015
USD ($)
Sep. 04, 2014
USD ($)
ft²
Jul. 23, 2014
Jul. 16, 2014
USD ($)
shares
Jan. 23, 2014
$ / shares
shares
Jan. 16, 2014
USD ($)
Oct. 30, 2013
USD ($)
$ / shares
shares
Feb. 28, 2013
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
$ / shares
Sep. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
$ / shares
Dec. 31, 2014
USD ($)
Dec. 31, 2013
Contractual Commitments And Contingencies [Line Items]                                    
Accrued Rent     $ 88,000       $ 88,000                      
Area of Land | ft²     4,000       4,000                      
Description of Lessor Leasing Arrangements, Operating Leases     The lease commenced on September 1, 2014 and expires on December 1, 2017 and has two (2) one-year renewal options.       The lease commenced on September 1, 2014 and expires on December 1, 2017 and has two (2) one-year renewal options.                      
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year                           $ 136,100        
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price | $ / shares                           $ 1.76   $ 1.40    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term                           7 years 9 months 18 days   7 years 6 months 8 years 6 months 8 years 10 months 24 days
Restructuring and Related Cost, Description                               Mr. Ramat is entitled to receive a severance amount equal to his then-current base salary less $50,000 multiplied by 50%, payable in a single lump sum.    
Non-Qualified Stock Options [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | shares   50,000                                
Vice President Commercial Operations [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Severance Costs                               $ 87,500    
Vice President Commercial Operations [Member] | Employment Contracts [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Annual Salary Providing Under Agreement                     $ 210,000              
Vice President Commercial Operations [Member] | Employment Contracts [Member] | Qualifed Stock Option [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage               20.00%                    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | shares                   100,000                
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price | $ / shares                   $ 1.76                
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term                   10 years                
Excess of Additional PaidIn Capital                     $ 7,500,000              
Severance Costs           $ 175,000                 $ 40,000      
Chief Medical Officer and Vice President [Member] | Employment Contracts [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 20.00%                                  
Salaries, Wages and Officers' Compensation $ 325,000                                  
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized | shares 250,000                                  
Deferred Compensation Arrangement with Individual, Exercise Price | $ / shares $ 0.71                                  
Chief Medical Officer and Vice President [Member] | Employment Contracts [Member] | Qualifed Stock Option [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Severance Costs         $ 217,000                          
Ramat [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Consulting Fees   $ 400,000             $ 20,000       $ 50,000          
Stock Option Entitled To Related Party | shares                         300,000          
Stock Option Entitled To Related Party Purchase Price Per Share | $ / shares                         $ 1.00          
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage                         20.00%          
Targeted Bonus Percentage Of Base Consulting Fees   50.00%                                
Restructuring and Related Cost, Description   50,000                                
Ramat [Member] | Non-Qualified Stock Options [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | shares   250,000                                
Freiman And Ramat [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Consulting Fees                               $ 20,000    
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price | $ / shares   $ 0.60                                
Share-based Compensation Arrangement by Share-based Payment Award, Description                               options to purchase 400,000 shares of the Companys common stock for their roles as directors, Co-Chairmen of the Board and Co-Chief Executive Officers. Options to purchase 200,000 shares have an exercise price of $1.11 per share, or 110% of the Companys last trading price on July 23, 2014 and were fully vested upon grant. Options to purchase the remaining 200,000 shares have an exercise price of $2.22 per share based upon two times the exercise price of $1.11 per share and vest on a daily basis up to 25% per year through July 23, 2018.    
Consulting Fees Reduced Amount                               $ 10,000    
Executive Vice President [Member] | Employment Contracts [Member] | Deferred Bonus [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Monthly Signing Bonus $ 8,507                                  
Salaries, Wages and Officers' Compensation $ 102,083                                  
Deferred Compensation Arrangement with Individual, Cash Awards Granted, Percentage 50.00%                                  
Executive Director Pharmacology [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Stock Option Entitled To Related Party Purchase Price Per Share | $ / shares       $ 1.24                            
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage                 20.00%                  
Annual Salary Providing Under Agreement       $ 180,000                            
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | shares                 50,000                  
Severance Costs                               $ 37,500    
Robert Weinstein [Member] | Employment Contracts [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Annual Salary Providing Under Agreement                       $ 275,000            
Robert Weinstein [Member] | Employment Contracts [Member] | Qualifed Stock Option [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage                       25.00%            
Share-based Compensation Arrangement by Share-based Payment Award, Shares Issued in Period | shares                       650,000            
Share-based Compensation Arrangements by Share-based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price | $ / shares                       $ 1.00            
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term                       10 years            
Freimans [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Consulting Fees   $ 20,000                                
Separation Agreement [Member] | Former President [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Deferred Compensation Arrangement with Individual, Distributions Paid                                 $ 282,000  
Employment Agreements [Member]                                    
Contractual Commitments And Contingencies [Line Items]                                    
Contractual Obligation, Future Minimum Payments Due, Remainder of Fiscal Year                           $ 380,000        
Contractual Obligation, Due in Second Year                           $ 350,000