XML 71 R53.htm IDEA: XBRL DOCUMENT v3.20.4
Subsequent Events (Details)
shares in Millions
Feb. 26, 2021
$ / shares
shares
Oct. 21, 2020
TGC    
Subsequent Event [Line Items]    
Reverse stock split   0.083
Subsequent Event    
Subsequent Event [Line Items]    
Common stock outstanding post merger (in shares) | shares 17.8  
Subsequent Event | Riley Exploration    
Subsequent Event [Line Items]    
Percentage of voting interests acquired 95.00%  
Subsequent Event | TGC    
Subsequent Event [Line Items]    
Par value (in dollars per share) | $ / shares $ 0.001  
Stock conversion ratio 97.796467