Quarterly report pursuant to Section 13 or 15(d)

Warrant Derivative Liability, Private Placement (Details)

v3.19.3
Warrant Derivative Liability, Private Placement (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 6 Months Ended
May 06, 2019
Jan. 08, 2019
Dec. 12, 2018
Dec. 31, 2018
Jun. 30, 2019
Jun. 30, 2018
Nov. 30, 2018
Private Placement Offering [Abstract]              
Units issued in private placement offering (in shares)     1,425,641        
Unit price (in dollars per share)     $ 1.95        
Gross proceeds from private placement offering     $ 2,800   $ 150 $ 0  
Share issuance costs     100        
Net proceeds from private placement offering     $ 2,700        
Common Stock [Member]              
Private Placement Offering [Abstract]              
Number of shares in contained in one unit (in shares)     1       1
Net proceeds from private placement offering   $ 100   $ 2,600      
Shares issued in private placement offering (in shares) 5,744,991 25,641   1,400,000      
Warrants settleable in shares, number of shares (in shares)         712,823    
Warrant [Member]              
Private Placement Offering [Abstract]              
Number of shares in contained in one unit (in shares)     0.5       0.5
Warrants, exercisable period         2 years    
Warrants, exercise price (in dollars per share)         $ 3.90