Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets

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Consolidated Balance Sheets - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
Current assets:    
Cash and cash equivalents $ 48,664 $ 66,923
Inventories 2,745 2,352
Prepaid expenses and other current assets 2,840 1,448
Total current assets 54,249 70,723
Restricted cash 1,311 1,311
Property and equipment, net 1,736 1,841
Right-of-use lease asset 4,592 4,706
Other assets 2,529 1,543
Total assets 64,417 80,124
Current liabilities:    
Accounts payable, net 2,408 4,547
Accrued expenses and other current liabilities 5,703 3,847
Lease liability 815 792
Total current liabilities 8,926 9,186
Leases, net of current portion 6,096 6,309
Total liabilities 15,022 15,495
Commitments and contingencies (Note 9)
Stockholders' equity:    
Preferred stock-$0.001 par value; 5,000,000 shares authorized, none issued or outstanding at March 31, 2022 and December 31, 2021
Common stock-$0.001 par value; 200,000,000 shares authorized at March 31, 2022 and December 31, 2021; 165,520,007 shares issued and outstanding at March 31, 2022 and December 31, 2021 165 165
Additional paid-in capital 559,721 558,566
Accumulated deficit (510,491) (494,102)
Total stockholders' equity 49,395 64,629
Total liabilities and stockholders' equity $ 64,417 $ 80,124