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

Net Loss per Share (Details)

v3.21.2
Net Loss per Share (Details) - USD ($)
 3 Months Ended 5 Months Ended 6 Months Ended 8 Months Ended 11 Months Ended 12 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2020
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Sep. 30, 2020
Dec. 31, 2020
Dec. 31, 2020
Dec. 31, 2019
Numerator:                      
Net loss attributable to common stockholders - basic and diluted $ (7,626,000)   $ (2,000)   $ (2,000) $ (11,708,000)   $ (390,000) $ (11,912,000)    
Evolv Technologies Holdings, Inc.                      
Numerator:                      
Net loss attributable to common stockholders - basic and diluted $ (22,371,000) $ (13,755,000) $ (5,104,000) $ (6,430,000)   $ (36,126,000) $ (11,534,000)     $ (27,392,000) $ (19,857,000)
Denominator:                      
Weighted average common shares outstanding - basic and diluted 31,540,397   23,568,291     29,593,131 23,491,518     23,625,483 22,655,763
Net loss per share attributable common stockholders ? basic and diluted $ (0.71)   $ (0.22)     $ (1.22) $ (0.49)     $ (1.16) $ (0.88)