Annual report pursuant to Section 13 and 15(d)

Subsequent Events (Details Textual)

v3.19.1
Subsequent Events (Details Textual) - Invagen Pharmaceuticals Inc [Member] - USD ($)
$ / shares in Units, $ in Millions
Feb. 08, 2019
Nov. 12, 2018
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned   $ 215.0
Subsequent Event [Member]    
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned $ 31.5  
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares 5,833,333  
Business Acquisition, Share Price $ 6.00  
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 33.30%