XML 17 R6.htm IDEA: XBRL DOCUMENT v3.21.2
Condensed Statements of Cash Flows - USD ($)
$ in Thousands
 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Cash flows from operating activities    
Net loss $ (15,762) $ (10,538)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation, amortization and accretion 144 893
Impairment loss on property and equipment and intangible asset   1,185
Stock-based compensation 2,050 188
Restructuring payments (875) (88)
Non-cash interest expense on convertible notes   125
Issuance costs for convertible notes   24
Gain on issuance of convertible notes   (63)
Gain on sale of PNAi technology (2,691)  
Change in fair value of convertible notes   775
Change in fair value of non-marketable equity securities 645  
Changes in operating assets and liabilities:    
Prepaid expense and other current assets (3,012) (6)
Accounts payable 55 (3)
Accrued and other current liabilities 2,176 264
Other liabilities   (183)
Net cash used in operating activities (17,270) (7,427)
Cash flows from investing activities    
Proceeds from sale of PNAi technology 796  
Purchase of property and equipment   (99)
Net cash provided by (used in) investing activities 796 (99)
Cash flows from financing activities    
Proceeds from exercise of stock options 550 23
Proceeds from issuance of convertible notes   5,602
Proceeds from issuance of Class A common stock upon initial public offering, net of underwriting discounts and commissions 51,176  
Payment of offering costs related to initial public offering (2,765)  
Payment issuance costs related to convertible promissory notes   (24)
Payment on capital lease obligations   (112)
Net cash provided by financing activities 48,961 5,489
Net increase (decrease) in cash and cash equivalents and restricted cash 32,487 (2,037)
Cash, cash equivalents and restricted cash, beginning of period 53,997 3,558
Cash, cash equivalents and restricted cash, end of period 86,484 1,521
Supplemental disclosure of cash flow information    
Cash paid for interest   21
Reclassification of redeemable convertible preferred stock into common stock upon initial public offering 139,576  
Non-marketable equity securities received as partial proceeds from sale of PNAi technology 1,759  
Lease assignment 136  
Cash and cash equivalents [Member]    
Cash flows from financing activities    
Cash, cash equivalents and restricted cash, end of period 86,191 1,451
Restricted cash [Member]    
Cash flows from financing activities    
Cash, cash equivalents and restricted cash, end of period $ 293 $ 70