Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

v3.10.0.1
Stockholders' Equity (Details Textual) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Jun. 30, 2018
Sep. 30, 2018
Jul. 31, 2018
Mar. 12, 2018
Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common Stock, Shares, Issued   26,263,631     25,236,255
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized 3,000,000        
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 5,000,000        
Maximum Value of Shares Authorized     $ 75.0    
Commission Rate Percentage     3.00%    
Stock Issued During Period, Shares, Restricted Stock Award, Gross   230,000      
Incentive Plan 2016 [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Number of Additional Shares Authorized   2,000,000      
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period   10 years      
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant   2,685,325      
Restricted Stock [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated Share-based Compensation Expense   $ 1.0      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term   2 years 7 months 6 days      
Restricted Stock Units (RSUs) [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated Share-based Compensation Expense   $ 3.4      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term   1 year 10 months 24 days      
Employee Stock Option [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Allocated Share-based Compensation Expense   $ 1.3      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term   1 year 3 months 18 days      
Fortress Biotech, Inc [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Common Stock, Shares, Issued       834,756  
Percentage of issued shares in diluted outstanding shares       2.50%