Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 21,176	$ 26,106
Restricted cash	70	70
Accounts receivable, net of allowance for doubtful accounts of $224 at March 31, 2022 and December 31, 2021	984	645
Inventory	3,295	3,242
Prepaid expenses and other current assets	13,138	1,138
Total current assets	38,663	31,201
Property and equipment, net	1,882	1,908
Other long-term assets	11,718	3,539
Total assets	52,263	36,648
Current liabilities
Accounts payable	4,196	2,375
Accrued expenses	2,567	2,435
Accrued settlement liability	2,500	2,500
Other current liabilities	3,320	737
Short-term debt	0	34,311
Related party payable	1,070	0
Total current liabilities	13,653	42,358
Long-term debt	0	16,153
Long-term debt - related party	0	16,670
Derivative liability	1,808	26,017
Other long-term liabilities	10,739	803
Total liabilities	26,200	102,001
Commitments and contingencies (Note 15)
Stockholders' equity / (deficit):
Common stock, $0.0001 par value. 300,000,000 and 80,071,901 shares authorized as of March 31, 2022 and December 31, 2021, respectively; 98,498,731 and 57,020,151 shares issued and outstanding as of March 31, 2022 and December 31, 2021 respectively.	10	6
Additional paid-in capital	438,404	242,299
Accumulated other comprehensive loss	(72)	(61)
Accumulated deficit	(412,279)	(307,597)
Total stockholders' equity / (deficit)	26,063	(65,353)
Total liabilities and stockholders' equity / (deficit)	$ 52,263	$ 36,648