Convertible Promissory Notes and Convertible Promissory Notes, Related Parties, 2021 Convertible Promissory Notes Payable (Details) $ / shares in Units, $ in Thousands			1 Months Ended	3 Months Ended			6 Months Ended	9 Months Ended	12 Months Ended
	Aug. 31, 2022 shares	Apr. 20, 2021 USD ($) $ / shares shares	Aug. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($) Investors $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	May 14, 2021 USD ($)	Dec. 31, 2020 $ / shares shares
April 2021 Securities Purchase Agreement and Warrants [Abstract]
Aggregate principal amount									$ 25,548	$ 8,042
Warrant exercise price (in dollars per share) | $ / shares									$ 0.07	$ 0.2		$ 0.19
Proceeds from, promissory note disbursement						$ 2,940	$ 2,940	$ 2,940	$ 2,940	$ 940
Warrants to purchase shares outstanding (in shares) | shares									1,208,216,000	204,883,000		190,357,000
Settlement of cash								2,981	$ 2,981	$ 493
Gain on extinguishment of debt				$ (86)	$ (211)		$ (211)	$ (297)	$ (418)	$ 204
April 2021 Securities Purchase Agreement and Warrants [Member]
April 2021 Securities Purchase Agreement and Warrants [Abstract]
Aggregate principal amount											$ 4,200
Warrants to purchase additional common stock (in shares) | shares		16,666,667							2,800,000
Warrant exercise price (in dollars per share) | $ / shares		$ 0.18
Warrants term period		4 years
Proceeds from, promissory note disbursement		$ 1,900
Warrants to purchase shares outstanding (in shares) | shares		9,300,000
Settlement of cash			$ 3,900
Shares issued (in shares) | shares	19,400,000
Gain on extinguishment of debt									$ (900)
April 2021 Securities Purchase Agreement and Warrants [Member] | Maximum [Member]
April 2021 Securities Purchase Agreement and Warrants [Abstract]
Aggregate principal amount		$ 3,400
Five Institutions' Notes [Member] | April 2021 Securities Purchase Agreement and Warrants [Member]
April 2021 Securities Purchase Agreement and Warrants [Abstract]
Aggregate principal amount									$ 500
Warrant exercise price (in dollars per share) | $ / shares									$ 0.18
Number of institutional investors | Investors									5