General form of registration statement for all companies including face-amount certificate companies

Stockholders' deficit, Preferred Stock (FY) (Details)

v3.20.4
Stockholders' deficit, Preferred Stock (FY) (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended
Feb. 12, 2019
Jan. 08, 2019
Dec. 12, 2018
Dec. 31, 2018
May 06, 2019
Class of Stock [Line Items]          
Unit price (in dollars per share)     $ 1.95    
Shares issued pursuant to a private placement - net proceeds   $ 0.1 $ 2.7 $ 2.6  
Share issuance costs     $ 0.1    
Series A Preferred Stock [Member]          
Class of Stock [Line Items]          
Shares issued pursuant to a private placement - net proceeds (in shares) 69,115     2,391,403  
Unit price (in dollars per share) $ 2.17     $ 2.17  
Shares issued pursuant to a private placement - net proceeds $ 0.2     $ 4.7  
Share issuance costs       $ 0.5  
Shares issued in stock conversion (in shares)         2,460,518