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) - Additional Information (Details)

Convertible Preferred Stock and Stockholders' Equity (Deficit) - Additional Information (Details)												1 Months Ended	3 Months Ended					9 Months Ended		12 Months Ended
	Sep. 13, 2021 USD ($) shares	Jul. 22, 2021 USD ($) shares	Jun. 04, 2021 $ / shares shares	Nov. 09, 2020 $ / shares shares	Oct. 20, 2020 shares	Jul. 27, 2020 shares	May 18, 2020 shares	Apr. 09, 2020	Mar. 30, 2020	Feb. 28, 2020 USD ($) $ / shares shares	Apr. 18, 2019 USD ($) $ / shares shares	Feb. 29, 2020 USD ($) $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2021 $ / shares shares	Mar. 31, 2021 shares	Sep. 30, 2020 USD ($) shares	Mar. 31, 2020 shares	Sep. 30, 2021 USD ($) $ / shares shares	Sep. 30, 2020 USD ($) shares	Dec. 31, 2020 $ / shares shares
Class of Stock [Line Items]
Reverse stock split								0.05										0.50
Temporary equity, par or stated value per share \| $ / shares													$ 0.0001					$ 0.0001		$ 0.0001
Shares issued													0					0		250,000
Dividend rate																		8.00%		8.00%
Number of Shares Authorized													1,250,000					1,250,000		1,250,000
Number of shares outstanding													0					0		250,000
Stock-based compensation \| $													$ 10,000					$ 10,000
Proceeds from Warrant Exercises \| $																		$ 0	$ 37,000
Issuance of common stock				236,375			60,250
Warrant
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock													19,000					19,000
Common Shares
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock				236,369
Exchange of convertible preferred stock for common stock (in shares)																	500
Issuance of common stock upon warrant exchanged													19,000	1,360,244	2,086,251
Issuance of common stock																	91,062
Common Shares \| Warrant
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock														1,000,000
Share Price \| $ / shares														$ 4.50
Exercise price of warrants \| $ / shares														$ 4.46
Warrant term														5 years
February 2020 Private Placement
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock				45,534						4,553		45,534
Number of units issued										91,062
Number of shares per unit										1
Warrant to purchase share of common stock per unit										0.50
Share Price \| $ / shares										$ 9.17
Cash fees paid \| $										$ 83,000
Exercise price of warrants \| $ / shares				$ 2.55						$ 8.80		$ 9.80
Warrant term										5 years
Gross proceeds \| $										$ 835,000
Beneficial ownership interest												4.99%
Convertible Preferred Stock, Convertible, Issue of Shares, Threshold Percentage												9.99%
Proceeds from Warrant Exercises \| $												$ 103,000
Exercise price \| $ / shares												$ 6.00
Dividend rate												0.00%
Volatility rate												59.00%
Risk free interest rate												0.89%
Expected term												5 years
July 22nd Purchase Agreement \| Securities Purchase Agreement
Class of Stock [Line Items]
Aggregate purchase price \| $		$ 10,000,000
Cash fees paid percentage		8.00%
Cash fees paid \| $		$ 800,000
Issuance of common stock		2,500,000
Threshold market capitalization of $75 million
Class of Stock [Line Items]
Market capitalization \| $	$ 75,000,000
Threshold market capitalization of $100 million
Class of Stock [Line Items]
Market capitalization \| $	100,000,000
Threshold market capitalization of $150 million
Class of Stock [Line Items]
Market capitalization \| $	$ 150,000,000
Restricted Stock
Class of Stock [Line Items]
Number of stock released																		29,064
Number of restricted shares granted																		664,500
Unamortized compensation costs \| $													$ 2,028,000					$ 2,028,000
Weighted-average period																		2 years 4 months 24 days
Carve-Out Plan \| Restricted Stock
Class of Stock [Line Items]
Number of stock released													0			353		352	706
Aggregate intrinsic value \| $													$ 0			$ 1,000		$ 2,000	$ 3,000
LTSI
Class of Stock [Line Items]
Maximum shares authorized to issue, percentage													15.00%					15.00%
Number of shares available for grant													672,180					672,180
Number of restricted shares granted													29,064			0		29,064	0
Aggregate intrinsic value \| $													$ 93,000					$ 93,000
September 2021 Inducement Grant
Class of Stock [Line Items]
Number of stock released	232,500
September 2021 Inducement Grant \| Vest monthly over a period of 36 months
Class of Stock [Line Items]
Number of stock released	77,500
Vesting term	36 months
Value of grant \| $	$ 772,000
September 2021 Inducement Grant \| Vest upon the achievement of certain company milestones
Class of Stock [Line Items]
Number of stock released	77,500
September 2021 Inducement Grant \| Restricted Stock
Class of Stock [Line Items]
Number of restricted shares granted	310,000
2020 Stock Incentive Plan
Class of Stock [Line Items]
Number of stock released																		201,343
Number of restricted shares granted																		20,500
2020 Stock Incentive Plan \| Restricted Stock
Class of Stock [Line Items]
Number of stock released													201,343					201,343
Aggregate intrinsic value \| $													$ 646,000					$ 646,000
Unamortized compensation costs \| $													$ 1,042,000					$ 1,042,000
Weighted-average period																		1 year 10 months 24 days
Shares authorized for issuance					650,000	650,000
Shares issued to to employees, directors and consultants					614,824	614,824
Minimum
Class of Stock [Line Items]
Reverse stock split									0.25
Maximum
Class of Stock [Line Items]
Reverse stock split									0.05
Lisa Walsh
Class of Stock [Line Items]
Warrants to purchase shares of Common Stock			187,500								12,756
Exchange of convertible preferred stock for common stock (in shares)			250,000
Warrant term			5 years 4 months
Lisa Walsh \| Warrant
Class of Stock [Line Items]
Share Price \| $ / shares			$ 4.77
Exercise price of warrants \| $ / shares			$ 3.00
Alexander Capital, LP.
Class of Stock [Line Items]
Proceeds from Warrant Exercises \| $												$ 11,000
Exercise price \| $ / shares												$ 6.00
Dividend rate												0.00%
Volatility rate												59.00%
Risk free interest rate												0.89%
Expected term												5 years
Series A Preferred Stock
Class of Stock [Line Items]
Temporary equity, par or stated value per share \| $ / shares													$ 0.0001					$ 0.0001
Shares issued													0					0
Dividend rate																		8.00%
Number of Shares Authorized													20,000,000					20,000,000
Number of shares outstanding													0					0
Series A Preferred Stock \| Minimum
Class of Stock [Line Items]
Proceeds from Issuance of Convertible Preferred Stock \| $											$ 500,000
Series A Preferred Stock \| Maximum
Class of Stock [Line Items]
Proceeds from Issuance of Convertible Preferred Stock \| $											$ 5,000,000
Series A Preferred Stock \| Lisa Walsh
Class of Stock [Line Items]
Shares issued											250,000
Dividend rate											8.00%
Par value \| $ / shares											$ 0.0001
Stated value \| $ / shares											4.00
Conversion price per share \| $ / shares											80.00
Floor price per share \| $ / shares											$ 30.00
Proceeds from Issuance of Convertible Preferred Stock \| $											$ 1,000,000
Fair value of embedded derivative liability \| $											$ 216,000
Exchange of convertible preferred stock for common stock (in shares)													250,000
Issuance of common stock upon warrant exchanged													187,500