Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 1,902	$ 227
Accounts receivable, net of allowance of $6,038 and $5,837 as of March 31,2024 and December 31, 2023, respectively	13,769	10,046
Notes receivable	2,072	2,072
Inventory	3,701	5,753
Prepaid expenses and other current assets	1,411	1,695
Total current assets	22,855	19,793
Property and equipment, net	66,268	67,828
Goodwill	7,347	7,347
Intangible assets, net	10,455	11,001
Right-of-use assets - operating leases	10,945	10,990
Restricted cash	10,046	9,936
Inventory, net of current portion	15,573	16,657
Other long-term assets	327	337
Total assets	143,816	143,889
Current liabilities:
Accounts payable	12,983	14,144
Accrued expenses and other current liabilities	8,755	7,580
Accrued R&D software	1,700	3,500
Short-term debt - unaffiliated (includes debt measured at fair value of $2,183 at March 31,2024 and $17,223 at December 31, 2023, respectively)	5,101	19,331
Short-term debt - related parties	34,699	19,909
Deferred revenue	2,806	2,834
Total current liabilities	66,044	67,298
Deferred revenue, net of current portion	3,265	3,186
Acquisition-related contingent consideration	1,606	1,606
Noncurrent lease liabilities - operating	26,265	26,177
Warrant liabilities	15,092	4,359
Deferred income tax liabilities	9	9
Other liabilities	290	294
Total liabilities	112,571	102,929
Commitments and contingencies (Note 9)
Stockholders’ equity
Preferred stock, $0.0001 par value, 10,000,000 shares authorized, none issued and outstanding at March 31, 2024 and December 31, 2023
Common Stock, $0.0001 par value, 730,000,000 shares authorized, 21,808,752 issued and outstanding as of March 31, 2024; 730,000,000 shares authorized, 19,378,192 issued and outstanding as of December 31, 2023	2	2
Additional paid-in capital	895,047	882,749
Accumulated deficit	(863,804)	(841,791)
Total stockholders’ equity	31,245	40,960
Total liabilitiesl and stockholders' equity	$ 143,816	$ 143,889