v3.22.2
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Operating activities    
Net loss $ (8,104) $ (14,835)
Adjustments to reconcile net loss to net cash used by operating activities:    
Gain upon extinguishment of Payroll Protection Program Loan 0 (1,528)
Depreciation and amortization 763 1,180
Stock-based compensation 1,855 (371)
Unrealized (gain) loss on mark-to-market of common stock warrants (4,723)  
Changes in operating assets and liabilities:    
Accounts receivable   893
Due to/from related parties (71) (638)
Inventory   (1,085)
Prepaid expenses and other current assets 5 3,301
Accounts payable (114) 1,254
Accrued expenses (87) (555)
Accrued compensation (250) 143
Other (550) 992
Net cash used by operating activities (11,276) (11,249)
Investing activities    
Proceeds from sales of short-term investments   11,698
Purchases of land, buildings, and equipment (1,289) (307)
Net cash (used by) provided by investing activities (1,289) 11,391
Financing activities    
Proceeds from the issuance of common stock and pre-funded warrants 11,209  
Costs incurred related to the issuance of common stock, pre-funded warrants, and common warrants (961)  
Repayments of financing lease obligations (190) (178)
Proceeds from the exercise of stock options 0 227
Net cash provided by financing activities 10,058 49
Net (decrease) increase in cash, cash equivalents, and restricted cash (2,507) 191
Cash, cash equivalents and restricted cash - beginning of period 14,421 18,289
Cash, cash equivalents and restricted cash - end of period $ 11,914 $ 18,480

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