CONVERTIBLE NOTES AND NOTES PAYABLE - Narratives (Details) - USD ($) $ in Thousands				1 Months Ended			3 Months Ended
	Apr. 26, 2022	Dec. 01, 2021	Jun. 14, 2021	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2023	Mar. 31, 2022	Sep. 30, 2021
Debt Instrument [Line Items]
Interest expense							$ 1,096	$ 2,977
Legacy SoundHound Common Stock
Debt Instrument [Line Items]
Conversion of convertible note (in Shares)	2,046,827
SNAP June 2020 Note
Debt Instrument [Line Items]
Proceeds from note payable, net of issuance costs						$ 15,000
Stated interest rate (percent)						5.00%
Converted instrument, amount	$ 15,000
Interest amount converted	1,400
Debt discount	200
Writeoff of derivative liability	$ 4,100
SVB March 2021 Note
Debt Instrument [Line Items]
Borrowings					$ 30,000
Final payment provision					$ 1,100
Loan bears interest rate							9.00%
Effective interest rate (percent)							13.50%
Comprehensive loss							$ 600
Accrued interest							$ 200	200
Total interest expense								700
Unamortized loan discount									$ 3,500
Interest expense								1,000
Fair value of warrants									$ 2,300
SVB March 2021 Note | Prime Rate
Debt Instrument [Line Items]
Prime interest rate (percent)							5.75%
SCI June 2021 Note
Debt Instrument [Line Items]
Loan bears interest rate							9.00%
Effective interest rate (percent)							13.50%
Interest expense							$ 400	300
Incremental extension amount				$ 5,000
Maximum borrowing capacity				$ 15,000			15,000
Proceeds from lines of credit		$ 10,000	$ 5,000
Provision percentage (percent)				3.50%
Final payment provision				$ 500
Convertible warrants (in shares)				63,785
Fair value of warrants			$ 1,500	$ 1,500
Debt issuance costs							2,200
Amortization of the debt discount							$ 600	$ 600
SCI June 2021 Note | Prime Rate
Debt Instrument [Line Items]
Prime interest rate (percent)							5.75%