XML 20 R7.htm IDEA: XBRL DOCUMENT v3.20.4
Consolidated Statement of Equity (Parenthetical)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Statement of Stockholders' Equity [Abstract]    
Reverse stock split 1-for-4 reverse stock split 1-for-4 reverse stock split