Datavault AI Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Borrowings - Short-term Loan Agreement - Meriwether (Details)

v3.26.1

Borrowings - Short-term Loan Agreement - Meriwether (Details) $ / shares in Units, $ in Thousands		1 Months Ended	12 Months Ended
	Jan. 19, 2024 USD ($) item $ / shares shares	Feb. 29, 2024 USD ($) shares	Dec. 31, 2025 USD ($) shares	Dec. 29, 2025 $ / shares	Dec. 31, 2024 $ / shares	Feb. 02, 2024 shares
Borrowings
Aggregate shares issued upon exercise of warrants (in shares) \| shares			1
Warrants exercise price (in dollar per share) \| $ / shares				$ 5
Agreement entered with number of investors \| item	4
Proceeds from issuance of notes payable			$ 27,533
Series B preferred stock \| Series B Preferred Stock
Borrowings
Warrants exercise price (in dollar per share) \| $ / shares					$ 35.72
January 2024 Short-Term Loan Agreement \| January 2024 Promissory notes
Borrowings
Principal amount	$ 1,000
Repayment of debt in cash		$ 700
Repayment of debt in shares		$ 300
Proceeds from issuance of notes payable	$ 600
January 2024 Short-Term Loan Agreement \| Series B Preferred Stock
Borrowings
Temporary equity, par or stated value per share (in dollars per share) \| $ / shares	$ 0.0001
January 2024 Short-Term Loan Agreement \| January 2024 Warrant Shares
Borrowings
Aggregate shares issued upon exercise of warrants (in shares) \| shares	66,665
Warrants exercise price (in dollar per share) \| $ / shares	$ 22.23
January 2024 Short-Term Loan Agreement \| Series B preferred stock \| Series B Preferred Stock \| January 2024 Promissory notes
Borrowings
Aggregate shares issued upon exercise of warrants (in shares) \| shares	9,322					29,322
Shares exercise of warrants for repayment of debt \| shares		9,322

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Face (par) amount of debt instrument at time of issuance.

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