CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current Assets:
Cash	$ 2,028	$ 2,701
Prepaid expenses and other current assets	625	868
Inventory	0	98
Total current assets	2,653	3,667
Property and equipment, net	3,141	2,441
Intangible assets, net	9	10
Right-of-use assets	1,709	798
Other assets	680	122
Total assets	8,192	7,038
Current Liabilities:
Accounts payable and accrued liabilities	3,653	3,219
Variable share settled restricted stock units	306
Current portion of operating lease liability	870	344
Other current liabilities	501	680
Total current liabilities	5,330	4,243
Lease liability, net of current portion	921	558
Convertible debt and warrant liability, at fair value	5,901	11,285
Other long-term liabilities	300
Total liabilities	12,452	16,086
Stockholders' deficit:
Additional paid-in capital	252,318	209,564
Accumulated deficit	(256,588)	(218,616)
Total stockholders' deficit	(4,260)	(9,048)
Total liabilities and stockholders' deficit	8,192	7,038
Common Class A [Member]
Stockholders' deficit:
Common stock par value	6	1
Common Class B [Member]
Stockholders' deficit:
Common stock par value	$ 4	$ 3