Debt - Additional Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands								3 Months Ended				6 Months Ended		9 Months Ended	12 Months Ended
	Jan. 29, 2024	May 19, 2023	Apr. 20, 2023	Dec. 30, 2022	Dec. 14, 2022	Sep. 15, 2022	Sep. 14, 2022	Oct. 31, 2023	Jul. 31, 2023	Apr. 30, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022	Sep. 17, 2023	Jan. 31, 2023	Jul. 21, 2023	Jan. 11, 2023
Short-Term Debt [Line Items]
Convertible Debt									$ 4,233			$ 4,233
Interest expense									$ 1,209		$ 74	$ 2,538	$ 163
Common stock, par value (in Dollars per share)									$ 0.0001			$ 0.0001			$ 0.0001
Debt instrument, Term						18 months
Interest expense									$ 380			$ 1,039
Interest expense on amortization of debt issuance costs									102			235
Accretion of debt discount									135			312
Secured promissory notes aggregate principal amount														$ 8,475
Accrued interest, paid									1,472			1,472			$ 181
Forecast [Member]
Short-Term Debt [Line Items]
Debt Instrument, Unamortized Discount	$ 15,275
Securities Purchase Agreement [Member]
Short-Term Debt [Line Items]
Convertible Debt						$ 10,300	$ 25,750		4,233			4,233
Debt Instrument, Interest Rate, Stated Percentage						3.00%
5% Convertible Promissory Notes Due 2024 [Member]
Short-Term Debt [Line Items]
Convertible note									10,300			10,300
Convertible Debt							25,750		$ 4,233			4,233
Convertible notes prepaid												$ 6,067
Debt Instrument, Interest Rate, Stated Percentage						3.00%			5.00%			5.00%
Debt instrument, Term						18 months						18 months
Issuance of convertible debt percentage												10.00%
Conversion price per share									$ 7.5			$ 7.5
Debt discount									$ 774			$ 774
Debt instrument periodic payment												$ 687
Common stock at a conversion price (in dollars per share)												$ 7.5
Lowest daily volume weighted average price									95.00%			95.00%
Debt Instrument, Convertible, Floor Price									$ 0.44			$ 0.44
Percentage of installment amount									105.00%			105.00%
Issuance of shares of common stock												8,704
Principal balance of cash on installment												$ 3,320
Interest expense on convertible note									$ 143			$ 492
Effective interest rate									18.78%			18.78%
Accrued interest, paid									$ 332			$ 332
Promissory Notes With Directors [Member]
Short-Term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																	13.80%
Interest expense									$ 268			504
Director note issed			$ 300									5,268
Director note sold			$ 300
Director notes outstanding							$ 8,475					$ 7,675
Secured promissory notes aggregate principal amount					$ 6,900
Promissory Notes With Directors [Member] \| GEN Keith B. Alexander [Member]
Short-Term Debt [Line Items]
Convertible promissory note in principal amount		$ 475
Promissory Notes With Directors [Member] \| Forecast [Member]
Short-Term Debt [Line Items]
Director notes outstanding	$ 8,475
Convertible Promissory Notes With C5 [Member]
Short-Term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage				13.80%
Debt Instrument Maturity date				Jun. 30, 2023
Common stock, par value (in Dollars per share)									$ 0.0001			$ 0.0001
Interest expense									$ 485			$ 838
Conversion price per share									$ 2			$ 2
Debt discount									$ 63			$ 63
Debt Instrument, Unamortized Discount									5,000			5,000
Accretion of debt discount									23			55
Senior secured convertible promissory note principal amount									14,875			$ 14,875
Secured promissory notes aggregate principal amount				$ 2,000				$ 400	$ 3,030	$ 6,845					$ 3,000
Korr Note [Member]
Short-Term Debt [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																8.00%
Debt discount																$ 55
Effective interest rate									50.71%			50.71%
Amortization of Debt Discount (Premium)												$ 5
Principal amount																$ 556
Interest rate terms												The Korr Note bears interest at a rate of 8% from July 21, 2023, calculated on an actual/360 basis.
Interest expense									$ 7			$ 7
Issue discount rate																9.90%
Effective interest amount												2
Fair Value, Inputs, Level 3 [Member]
Short-Term Debt [Line Items]
Fair value of convertible notes						$ 774			168			168
Fair Value, Inputs, Level 3 [Member] \| 5% Convertible Promissory Notes Due 2024 [Member]
Short-Term Debt [Line Items]
Fair value of convertible notes									2,906			2,906
Fair Value, Inputs, Level 3 [Member] \| Convertible Promissory Notes With C5 [Member]
Short-Term Debt [Line Items]
Fair value of convertible notes									10,210			10,210
Fair Value, Inputs, Level 3 [Member] \| Korr Note [Member]
Short-Term Debt [Line Items]
Fair value of debt									$ 343			$ 343

IronNet, Inc. 10-Q