Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 10,155	$ 70,016
Prepaid expenses and other current assets	950	955
Total current assets	11,105	70,971
Other assets	90	90
Total assets	11,195	71,061
Current liabilities:
Accounts payable	40,520	44,698
Accrued expenses	14,791	19,882
Deferred revenue	883	4,145
Total current liabilities	56,194	68,725
Non-current liabilities:
Deferred revenue	1,766	1,018
Long-term debt		25,006
Total liabilities	57,960	94,749
Commitments and contingencies (Note 7)
Stockholders’ equity (deficit):
Common stock, $0.001 par value: 225,000,000 shares authorized at December 31, 2022 and December 31, 2021; 119,080,135 and 64,027,629 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively	119	64
Additional paid-in capital	634,925	587,327
Accumulated deficit	(681,809)	(611,079)
Total stockholders’ deficit	(46,765)	(23,688)
Total liabilities and stockholders’ deficit	$ 11,195	$ 71,061

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Balance Type:	credit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).