Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets:
Cash	$ 53,317	$ 7,065
Trade accounts receivable	763	757
Inventories	2,244	2,196
Prepaid expenses and other current assets	1,870	3,907
Total current assets	58,194	13,925
Property and equipment, net	1,879	2,294
Operating lease right-of-use assets	8,560	9,133
Intangible assets, net	195	244
Other noncurrent assets	1,351	1,351
Total assets	70,179	26,947
Current liabilities:
Trade accounts payable	1,541	3,756
Accrued expenses and other current liabilities	9,604	8,640
Loans payable, current	30,006	1,671
Deferred revenue, current	2,177	1,781
Total current liabilities	43,328	15,848
Warrant liabilities	1,971	1,892
Operating lease liabilities, net of current portion	6,884	7,301
Loans payable, noncurrent	9,108	7,811
Deferred revenue, noncurrent	92	9
Total liabilities	61,383	32,861
Commitments and contingencies (Note 11)
Stockholders' (deficit) equity:
Common stock par value $0.0001 per share; 675,000,000 shares authorized at September 30, 2023 and December 31, 2022; 155,288,763 shares and 113,335,530 shares issued and outstanding as of September 30, 2023 and December 31, 2022.	15	11
Additional paid-in capital	462,385	381,274
Accumulated deficit	(443,132)	(376,797)
Accumulated other comprehensive loss	(10,472)	(10,402)
Total stockholders' (deficit) equity	8,796	(5,914)
Total liabilities and stockholders’ equity	$ 70,179	$ 26,947