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

Long-term Debt - JPM Credit Agreement (Details)

v3.21.2
Long-term Debt - JPM Credit Agreement (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2020
Mar. 31, 2020
Jun. 30, 2021
Jun. 30, 2021
Dec. 31, 2020
Dec. 31, 2019
Jul. 05, 2017
Debt Instrument [Line Items]              
Warrants to purchase shares of common stock           3,386,246  
Unamortized debt discount $ 118       $ 118    
Evolv Technologies Holdings, Inc.              
Debt Instrument [Line Items]              
Loss on extinguishment of debt     $ (11,820) $ (11,820) $ (66) $ (679)  
Warrants to purchase shares of common stock 5,127,237 740,991 5,127,237 5,127,237 5,127,237    
Warrants exercise price   $ 0.15          
Fair value of warrants   $ 100          
Debt issuances costs   100          
Unamortized debt discount $ 118   $ 70 $ 70 $ 118    
Evolv Technologies Holdings, Inc. | JPM Credit Agreement              
Debt Instrument [Line Items]              
Face amount of debt $ 10,000       10,000    
Repayments of debt         5,000    
Loss on extinguishment of debt         $ 100    
Interest rate 4.50%   4.50% 4.50% 4.50%    
Warrants to purchase shares of common stock 1,000,000       1,000,000    
Warrants exercise price $ 0.16       $ 0.16    
Fair value of warrants $ 100       $ 100    
Debt issuances costs         100    
Unamortized debt discount     $ 100 $ 100      
Interest expense     200 300      
Amortization of the debt discount     100 100      
Amount drawn     $ 5,400 $ 5,400      
Evolv Technologies Holdings, Inc. | Revolving line of credit outstanding              
Debt Instrument [Line Items]              
Face amount of debt 10,000 7,000     10,000   $ 1,000
Maximum borrowing capacity $ 10,000 7,000     10,000   $ 1,000
Repayments of debt         3,000    
Loss on extinguishment of debt         $ 100    
Interest rate 4.50%       4.50%    
Evolv Technologies Holdings, Inc. | 2020 SVB Term Loan              
Debt Instrument [Line Items]              
Face amount of debt $ 5,000 5,000     $ 5,000    
Repayments of debt $ 8,000 $ 3,100          
Interest rate     5.00% 5.00%      
Warrants to purchase shares of common stock     740,991 740,991      
Warrants exercise price     $ 0.15 $ 0.15      
Fair value of warrants     $ 100 $ 100      
Debt issuances costs       $ 100      
Interest expense         $ 100    
Evolv Technologies Holdings, Inc. | Wall Street Journal Prime Rate              
Debt Instrument [Line Items]              
Warrants to purchase shares of common stock 1,000,000       1,000,000    
Warrants exercise price $ 0.16       $ 0.16    
Fair value of warrants $ 100       $ 100    
Debt issuances costs         $ 200    
Evolv Technologies Holdings, Inc. | Wall Street Journal Prime Rate | JPM Credit Agreement              
Debt Instrument [Line Items]              
Spread on variable rate         2.25%    
Interest rate 5.50%       5.50%    
Debt issuances costs         $ 100    
Unamortized debt discount $ 200       200    
Accrued interest, current 100       100    
Interest expense         300    
Amortization of the debt discount         100    
Amount drawn $ 3,500       $ 3,500    
Evolv Technologies Holdings, Inc. | Wall Street Journal Prime Rate | Revolving line of credit outstanding              
Debt Instrument [Line Items]              
Spread on variable rate         1.25%    
Interest rate 4.50%       4.50%    
Evolv Technologies Holdings, Inc. | Wall Street Journal Prime Rate | 2020 SVB Term Loan              
Debt Instrument [Line Items]              
Spread on variable rate   0.50%          
Interest rate   5.00% 0.50% 0.50%      
Evolv Technologies Holdings, Inc. | Maximum | JPM Credit Agreement              
Debt Instrument [Line Items]              
Interest rate 5.50%   5.50% 5.50% 5.50%    
Debt issuances costs       $ 200      
Evolv Technologies Holdings, Inc. | Maximum | Wall Street Journal Prime Rate | JPM Credit Agreement              
Debt Instrument [Line Items]              
Interest rate 2.25%       2.25%