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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Current assets:    
Cash and cash equivalents $ 21,298 $ 61,094
Restricted cash, current 488 1,007
Accounts receivable 434 0
Insurance receivable 4,000 4,000
Prepaids and other current assets 6,771 10,173
Total current assets 32,991 76,274
Property, machinery and equipment, net 3,605 4,016
Intangible assets, net 335 337
Operating right-of-use asset 5,903 6,441
Deferred offering costs 468 331
Restricted cash, non-current 366 312
Other non-current assets 5,048 4,712
Total assets 48,716 92,423
LIABILITIES AND STOCKHOLDERS’ EQUITY    
Accounts payable 2,498 2,239
Accrued liabilities 6,785 8,026
Loan payable, current 8,702 11,627
Contract liabilities, current 1,237 1,654
Operating lease liability, current 1,210 1,153
Stock repurchase liability 0 10,000
Litigation settlement contingency 8,500 8,500
Other current liabilities 24 27
Total current liabilities 28,956 43,226
Contract liabilities, non-current 794 1,026
Loan Payable, non-current 0 2,404
Warrant liability 226 564
Operating lease liability, non-current 5,506 6,131
Other non-current liabilities 477 465
Total non-current liabilities 7,003 10,590
Total liabilities 35,959 53,816
Commitments and Contingencies (Note 12)
Stockholders’ equity:    
Common stock, $0.00001 par value; 250,000,000 shares authorized and 97,865,351 issued and outstanding as of June 30, 2023; 250,000,000 shares authorized and 84,441,153 issued and outstanding as of December 31, 2022 1 1
Additional paid-in capital 356,543 342,733
Accumulated deficit (343,787) (304,127)
Total stockholders’ equity 12,757 38,607
Total liabilities and stockholders’ equity $ 48,716 $ 92,423