WiSA Technologies, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Convertible Preferred Stock and Stockholders' Equity (Deficit) - Warrants for shares of common stock (Details)

Convertible Preferred Stock and Stockholders' Equity (Deficit) - Warrants for shares of common stock (Details)			1 Months Ended				3 Months Ended					9 Months Ended		12 Months Ended
	Jun. 04, 2021 USD ($) $ / shares shares	Apr. 23, 2020 $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Jan. 31, 2021 USD ($) $ / shares shares	Apr. 30, 2020 USD ($) $ / shares shares	Feb. 29, 2020 USD ($)	Sep. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2021 USD ($) $ / shares shares	Mar. 31, 2021 shares	Sep. 30, 2020 USD ($)	Mar. 31, 2020 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($)	Dec. 31, 2020 $ / shares shares	Apr. 23, 2021	Nov. 09, 2020 shares	Apr. 18, 2019 shares
Class of Stock [Line Items]
Deemed dividend from warrant repricing							$ 0			$ 0		$ 0	$ 134,000
Proceeds from Warrant Exercises												$ 0	$ 37,000
Lisa Walsh
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares	187,500																12,756
Warrant term	5 years 4 months
Alexander Capital, LP.
Class of Stock [Line Items]
Proceeds from Warrant Exercises						$ 11,000
Common Shares
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares																236,369
Warrants to purchase shares of common stock for cash \| shares			250,000
Issuance of common stock upon warrant exchanged \| shares							19,000	1,360,244	2,086,251
June 4th Purchase Agreement
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares							2,275,000					2,275,000
Exercise price of warrants \| $ / shares							$ 2.55					$ 2.55
Fair value of warrant							$ 3,153,000					$ 3,153,000
Common Stock Price \| $ / shares							$ 2.52					$ 2.52
June 8th Purchase Agreement
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares							2,040,000					2,040,000
Exercise price of warrants \| $ / shares							$ 2.61					$ 2.61
Fair value of warrant							$ 2,375,000					$ 2,375,000
Common Stock Price \| $ / shares							$ 2.25					$ 2.25
April 2020 public offering
Class of Stock [Line Items]
Exercise price of warrants \| $ / shares		$ 3.25			$ 0.01
Fair value of warrant					$ 475,000
Common Stock Price \| $ / shares					$ 2.50
Combined shares price \| $ / shares		$ 3.24			$ 3.25
Deemed dividend from warrant repricing					$ 2,606,000							$ 134,000
Proceeds from Issuance of Warrants					$ 4,750
Issuance of common stock upon warrant exchanged \| shares					475,000
Warrant term															5 years
Warrant
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares							19,000					19,000
Proceeds from Issuance of Warrants							$ 62,000
Warrant \| Lisa Walsh
Class of Stock [Line Items]
Exercise price of warrants \| $ / shares	$ 3.00
Fair value of warrant	$ 570,000
Common Stock Price \| $ / shares	$ 4.77
Warrant \| Common Shares
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares			1,000,000					1,000,000
Exercise price of warrants \| $ / shares			$ 4.46					$ 4.46
Fair value of warrant			$ 579,000					$ 579,000
Common Stock Price \| $ / shares			$ 4.50					$ 4.50
Net proceeds			$ 2,300,000
Warrant term			5 years					5 years
Warrant \| January 2021
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares				1,221,675
Warrants to purchase shares of common stock for cash \| shares				305,419
Exercise price of warrants \| $ / shares				$ 4.20
Fair value of warrant				$ 567,000
Common Stock Price \| $ / shares				$ 3.85
Proceeds from Warrant Exercises				$ 2,900,000
Warrant term				5 years
March 2020 Warrant
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares											227,679
Exercise price of warrants \| $ / shares											$ 6.40
Fair value of warrant											$ 625,000
Common Stock Price \| $ / shares											$ 5.40
March 2020 Maxim Warrant
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares											20,400
Prefunded common stock purchase warrants \| April 2020 public offering
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares					475,000
Common stock purchase warrants \| April 2020 public offering
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares		475,000			1,525,000
Exercise price of warrants \| $ / shares					$ 3.25
April 2020 Maxim Warrant
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares					100,000		15,000					15,000		15,000
Exercise price of warrants \| $ / shares					$ 3.90
Fair value of warrant					$ 106,000
Common Stock Price \| $ / shares					$ 2.50		$ 15.80					$ 15.80		$ 15.80
Combined shares price \| $ / shares												$ 0.20		$ 0.20
Issuance of common stock upon warrant exchanged \| shares												20,722		20,722
April 2020 Maxim Warrant \| April 2020 public offering
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock \| shares		100,000			291,000
Exercise price of warrants \| $ / shares					$ 3.90
Dividend Yield \| June 4th Purchase Agreement
Class of Stock [Line Items]
Measurement input							0.0					0.0
Dividend Yield \| June 8th Purchase Agreement
Class of Stock [Line Items]
Measurement input							0.0					0.0
Dividend Yield \| April 2020 public offering
Class of Stock [Line Items]
Measurement input					0.0
Dividend Yield \| Warrant \| Lisa Walsh
Class of Stock [Line Items]
Measurement input	0.0
Dividend Yield \| Warrant \| Common Shares
Class of Stock [Line Items]
Measurement input			0.0					0.0
Dividend Yield \| Warrant \| January 2021
Class of Stock [Line Items]
Measurement input				0.0
Dividend Yield \| March 2020 Warrant
Class of Stock [Line Items]
Measurement input											0.0
Dividend Yield \| April 2020 Maxim Warrant
Class of Stock [Line Items]
Measurement input					0
Volatility \| June 4th Purchase Agreement
Class of Stock [Line Items]
Measurement input							64.0					64.0
Volatility \| June 8th Purchase Agreement
Class of Stock [Line Items]
Measurement input							64.0					64.0
Volatility \| April 2020 public offering
Class of Stock [Line Items]
Measurement input					64.0
Volatility \| Warrant \| Lisa Walsh
Class of Stock [Line Items]
Measurement input	60.7
Volatility \| Warrant \| Common Shares
Class of Stock [Line Items]
Measurement input			60.7					60.7
Volatility \| Warrant \| January 2021
Class of Stock [Line Items]
Measurement input				60.1
Volatility \| March 2020 Warrant
Class of Stock [Line Items]
Measurement input											61.0
Volatility \| April 2020 Maxim Warrant
Class of Stock [Line Items]
Measurement input					64
Risk-free rate of interest \| June 4th Purchase Agreement
Class of Stock [Line Items]
Measurement input							0.45					0.45
Risk-free rate of interest \| June 8th Purchase Agreement
Class of Stock [Line Items]
Measurement input							0.32					0.32
Risk-free rate of interest \| April 2020 public offering
Class of Stock [Line Items]
Measurement input					0.37
Risk-free rate of interest \| Warrant \| Lisa Walsh
Class of Stock [Line Items]
Measurement input	0.78
Risk-free rate of interest \| Warrant \| Common Shares
Class of Stock [Line Items]
Measurement input			0.77					0.77
Risk-free rate of interest \| Warrant \| January 2021
Class of Stock [Line Items]
Measurement input				0.45
Risk-free rate of interest \| March 2020 Warrant
Class of Stock [Line Items]
Measurement input											0.38
Risk-free rate of interest \| April 2020 Maxim Warrant
Class of Stock [Line Items]
Measurement input					0.37
Term (Years) \| June 4th Purchase Agreement
Class of Stock [Line Items]
Fair Value Expected Term												5 years 6 months
Term (Years) \| June 8th Purchase Agreement
Class of Stock [Line Items]
Fair Value Expected Term												5 years 6 months
Term (Years) \| April 2020 public offering
Class of Stock [Line Items]
Fair Value Expected Term					5 years
Term (Years) \| Warrant \| Lisa Walsh
Class of Stock [Line Items]
Fair Value Expected Term	5 years 4 months 24 days
Term (Years) \| Warrant \| Common Shares
Class of Stock [Line Items]
Fair Value Expected Term			5 years
Term (Years) \| Warrant \| January 2021
Class of Stock [Line Items]
Fair Value Expected Term									5 years
Term (Years) \| March 2020 Warrant
Class of Stock [Line Items]
Fair Value Expected Term											5 years
Term (Years) \| April 2020 Maxim Warrant
Class of Stock [Line Items]
Fair Value Expected Term					5 years
Series A Preferred Stock \| Lisa Walsh
Class of Stock [Line Items]
Issuance of common stock upon warrant exchanged \| shares							187,500