Annual report pursuant to Section 13 and 15(d)

Organization, Plan of Business Operations (Details Textual)

v3.19.1
Organization, Plan of Business Operations (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
Feb. 08, 2019
Dec. 31, 2018
Nov. 12, 2018
Dec. 31, 2017
Retained Earnings (Accumulated Deficit)   $ (42,209)   $ (20,661)
Invagen Pharmaceuticals Inc [Member]        
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned     $ 215,000  
Invagen Pharmaceuticals Inc [Member] | Common Stock [Member]        
Stock Issued During Period, Value, Acquisitions $ 180,000      
Subsequent Event [Member] | Line of Credit [Member]        
Initial Financing Amount 3,000      
Interim Financing Amount $ 7,000      
Subsequent Event [Member] | Invagen Pharmaceuticals Inc [Member]        
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares 5,833,333      
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned $ 31,500      
Business Acquisition, Share Price $ 6.00      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 33.30%