Organization and Summary of Significant Accounting Policies - Additional Information (Details)
$ / shares in Units, $ in Thousands |
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3 Months Ended |
9 Months Ended |
12 Months Ended |
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Aug. 26, 2021
USD ($)
Actual
$ / shares
shares
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Aug. 15, 2021
USD ($)
$ / shares
shares
|
Oct. 31, 2021
USD ($)
$ / shares
shares
|
Oct. 31, 2020
USD ($)
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Oct. 31, 2021
USD ($)
Actual
$ / shares
shares
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Oct. 31, 2020
USD ($)
|
Jan. 31, 2021
USD ($)
Actual
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Jan. 31, 2020
USD ($)
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Accounts receivable, allowance for credit loss |
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$ 0
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$ 0
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| Change in net unrealized gains (losses) on available for sale investments, net of tax |
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$ (397)
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$ (398)
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(397)
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175
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| Property plant and equipment repairs and maintanance |
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10
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67
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| Costs of caputalization of software |
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629
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0
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| Research and development |
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$ 28,144
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$ 5,687
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$ 42,606
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$ 19,965
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25,754
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26,587
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| Advertising costs |
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2,631
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1,129
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| Cash FDIC Insurance amount |
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30,728
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| Cash and cash equivalents |
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$ 73,891
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$ 73,891
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$ 31,543
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10,806
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| Shares Issued, Price Per Share | $ / shares |
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$ 12.85
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$ 12.85
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| Common stock diluted exchange ratio | Actual |
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0.814107
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| Collectible receivables |
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$ 6,667
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| Working capital |
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$ 68,012
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| Number of shares Right to receive on occurrence of Earnout event | shares |
1,078
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| ProceedsFromRecapitalization |
$ 13,251
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| Payments of Stock Issuance Costs |
$ 9,038
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$ 21,180
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| Stock Issued During Period, Shares, New Issues | shares |
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305
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| Proceeds from Issuance of Private Placement |
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$ 125,000
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |
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8,606,473
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8,606,473
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| Fair Value Adjustment of Warrants |
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$ 11,302
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| Number of Operating Segments | Actual |
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1
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| Public Warrants [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Adjustments to Additional Paid in Capital, Fair Value |
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$ 15,740
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |
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8,596,273
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8,596,273
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| Fair Value Adjustment of Warrants |
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$ 15,740
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| Private Warrants [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares |
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10,200
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10,200
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| PIPE Shares [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Shares Issued, Price Per Share | $ / shares |
$ 10.00
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$ 10.00
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| Stock Issued During Period, Shares, New Issues | shares |
125,000
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12,500,000
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| Proceeds from Issuance of Private Placement |
$ 12,500,000
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$ 125,000
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| Short-term Investments [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Investments |
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1,398
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| Long-term Investments [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Investments |
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$ 0
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| IronNet Cybersecurity Inc [Member] | Business Combination Agreement [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Number of consecutive trading days for determining the share price |
10 days
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| Common stock diluted exchange ratio | Actual |
0.8141070
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| IronNet Cybersecurity Inc [Member] | Business Combination Agreement [Member] | Stock Conversion Basis [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Common stock diluted exchange ratio | Actual |
0.814107
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| IronNet Cybersecurity Inc [Member] | Business Combination Agreement [Member] | Share Price Equals Or Exceeds Dollars Thirteen [Member] |
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| Organization And Summary Of Significant Accounting Policies [Line Items] |
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| Shares Issued, Price Per Share | $ / shares |
$ 13.00
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