Condensed Consolidated Balance Sheets - USD ($)	Jun. 30, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 467,000	$ 227,000
Accounts receivable, net of allowance of $6,143 and $5,837 as of June 30, 2024 and December 31, 2023, respectively	13,472,000	10,046,000
Notes receivable	0	2,072,000
Inventory	2,915,000	5,753,000
Prepaid expenses and other current assets	877,000	1,695,000
Total current assets	17,731,000	19,793,000
Property and equipment, net	64,727,000	67,828,000
Goodwill	7,347,000	7,347,000
Intangible assets, net	9,999,000	11,001,000
Right-of-use assets - operating leases	10,903,000	10,990,000
Restricted cash	10,087,000	9,936,000
Inventory, net of current portion	14,395,000	16,657,000
Other long-term assets	305,000	337,000
Total assets	135,494,000	143,889,000
Current liabilities:
Accounts payable	13,726,000	14,144,000
Accrued expenses and other current liabilities	10,384,000	7,580,000
Accrued R&D software	0	3,500,000
Short-term debt - unaffiliated (includes debt measured at fair value of $2,985 at June 30, 2024 and $17,223 at December 31, 2023, respectively)	5,243,000	19,331,000
Short-term debt - related parties	35,756,000	19,909,000
Deferred revenue	2,791,000	2,834,000
Total current liabilities	67,900,000	67,298,000
Deferred revenue, net of current portion	3,439,000	3,186,000
Acquisition-related contingent consideration	1,606,000	1,606,000
Noncurrent lease liabilities - operating	26,356,000	26,177,000
Warrant liabilities	8,086,000	4,359,000
Deferred income tax liabilities	9,000	9,000
Other liabilities	287,000	294,000
Total liabilities	107,683,000	102,929,000
Commitments and contingencies (Note 9)
Stockholders’ equity
Preferred stock, $0.0001 par value, 10,000,000 shares authorized, none issued and outstanding at June 30, 2024 and December 31, 2023
Common Stock, $0.0001 par value, 730,000,000 shares authorized, 21,933,861 issued and outstanding as of June 30, 2024; 730,000,000 shares authorized, 19,378,192 issued and outstanding as of December 31, 2023	2,000	2,000
Additional paid-in capital	898,101,000	882,749,000
Accumulated deficit	(870,292,000)	(841,791,000)
Total stockholders’ equity	27,811,000	40,960,000
Total liabilitiesl and stockholders' equity	$ 135,494,000	$ 143,889,000