Annual report pursuant to Section 13 and 15(d)

Reverse Recapitalization - Additional Information (Details)

v3.22.1
Reverse Recapitalization - Additional Information (Details)
12 Months Ended
Sep. 10, 2021
$ / shares
shares
Aug. 26, 2021
USD ($)
$ / shares
shares
Apr. 21, 2020
USD ($)
Dec. 29, 2018
USD ($)
shares
Jan. 31, 2022
USD ($)
$ / shares
shares
Jan. 31, 2021
USD ($)
shares
Jun. 21, 2021
USD ($)
Jan. 31, 2020
shares
Business Acquisition [Line Items]                
Bonus payment made to management and employees         $ 515,000      
Proceeds from PIPE shares         125,000,000 $ 0    
Aggregate purchase price         365,000 $ 57,609,000    
Repayment of term loan and interest   $ 15,609,000            
Debt instrument face amount             $ 15,000,000  
Principal amount       $ 1,000,000        
Rate of interest       2.76%        
Shares surrender in conjunction to merger | shares       108        
Non cash expense         $ 155,518,000      
Non vested number of shares | shares         10,310,000 9,712,000   14,397,000
Recapitalization   13,251,000            
Transaction cost related to merger         $ 2,328,000      
Additional Paid-in Capital [Member]                
Business Acquisition [Line Items]                
Aggregate purchase price         $ 365,000 $ 57,608,000    
Transaction costs   $ 9,038,000            
IronNet Cybersecurity Inc [Member] | Business Combination Agreement [Member]                
Business Acquisition [Line Items]                
Common stock diluted exchange ratio         0.8141070      
Restricted Stock Units (RSUs) [Member]                
Business Acquisition [Line Items]                
Share issued, price per share | $ / shares         $ 12.85      
Non cash expense         $ 156,560,000 0    
Non vested number of shares | shares         20,128      
Restricted Stock Units (RSUs) [Member] | 2014 Equity Incentive Plan [Member]                
Business Acquisition [Line Items]                
Non cash expense         $ 169,360,000      
Non vested number of shares | shares         15,780      
PIPE Shares [Member]                
Business Acquisition [Line Items]                
Number of shares issued | shares   12,500            
Share issued, price per share | $ / shares   $ 10.00            
Proceeds from PIPE shares   $ 125,000,000            
Sale of gross proceeds   125,000,000            
Transaction costs   $ 21,179,000            
Earnout Shares [Member]                
Business Acquisition [Line Items]                
Number of shares issued | shares 1,078              
Share issued, price per share | $ / shares $ 1,078              
Sale price of common stock | $ / shares $ 13.00              
LGL Founders Shares [Member]                
Business Acquisition [Line Items]                
Number of shares issued | shares         3,234      
Share issued, price per share | $ / shares         $ 0.007      
Aggregate purchase price         $ 24,000      
Payback Protection Program Loan [Member] | CARES Act [Member]                
Business Acquisition [Line Items]                
Debt instrument face amount     $ 5,580,000          
Interest rate     1.00%          
Debt instrument frequency of periodic payment     monthly          
Debt instrument date of first required payment     Sep. 15, 2021          
Interest accrual on loan           $ 44,000