Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Details Textual)

v3.10.0.1
Stock-Based Compensation (Details Textual) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Sep. 07, 2017
May 15, 2015
Sep. 24, 2018
Aug. 25, 2016
Oct. 22, 2013
Mar. 20, 2007
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Nov. 02, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Stock Options             $ 1,070,000   $ 1,070,000    
Employees And Consultants [Member] | General and Administrative Expenses and Research and Development Expense [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Allocated Share-based Compensation Expense             $ 475,000 $ 900,000 $ 1,700,000 $ 2,900,000  
Employee [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross                   15,541  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Fair Value                   $ 308,000  
2007 Stock Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number           71,429 19,885   19,885    
2007 Stock Plan [Member] | Maximum [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross           250,000          
2010 Stock Plan [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number             327,402   327,402   85,714
2010 Stock Plan [Member] | Maximum [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 500,000 228,571 1,000,000 400,000 171,429            
2010 Stock Plan [Member] | Minimum [Member]                      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 400,000 171,429 500,000 228,571 85,714