Supplemental Information (Tables)

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedules of Concentration Risk

The following table sets forth our concentration of accounts receivable, net of specific allowances for doubtful accounts.

	September 30, 2023		December 31, 2022
Customer A	21	%	—	%
Customer B	15	%	7	%
Customer C	14	%	3	%
Customer D	11	%	1	%
Customer E	—	%	23	%

Schedule of Inventory

Our inventory balance on the dates presented consisted of the following:

	September 30, 2023		December 31, 2022
Raw materials	$	1,498	$	2,968
Finished goods	74		50
Other	6		30
Inventory reserve	(679)		(268)
Total inventory	$	899	$	2,780

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table sets forth common stock equivalents that have been excluded from the computation of dilutive weighted average shares outstanding as their inclusion would have been anti-dilutive:

	September 30,
	2023	2022
Warrants	3,443,844	5,636,801
Options	880,510	934,729
Restricted stock units	7,446,264	3,353,776
Total	11,770,618	9,925,306

Schedule of Financial Instruments Measured at Fair Value

Our assets and liabilities measured at fair value on a recurring basis as of September 30, 2023 are set forth below:

	Level 1		Level 2		Level 3		Total
Liabilities:
Warrant liability	$	—	$	—	$	—	$	—
Total	$	—	$	—	$	—	$	—

Our financial instruments measured at fair value on a recurring basis as of December 31, 2022 are set forth below:

	Level 1		Level 2		Level 3		Total
Liabilities:
Warrant liability	$	—	$	256	$	—	$	256
Total	$	—	$	256	$	—	$	256

Schedule of Calculated Aggregate Fair Values and Assumptions

The following table sets forth the assumptions used to calculate the fair values of the liability classified warrant issued in connection with our 2020 Convertible Notes as of the dates presented:

	September 30, 2023	December 31, 2022
Strike price per share	N/A	$	1.42
Closing price per share	N/A	$	0.77
Term (years)	N/A	0.53
Volatility	N/A	102		%
Risk-free rate	N/A	4.70		%
Dividend Yield	—	—