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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Operating activities:    
Net loss $ (13,593) $ (5,641)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 36 16
Stock-based compensation 853 289
Changes in lease liability 173 (81)
Changes in operating assets and liabilities:    
Prepaid expenses and other assets (2,655) (711)
Accounts payable and other current liabilities 1,195 (654)
Net cash used in operating activities (13,991) (6,782)
Investing activities:    
Purchase of property, plant and equipment (25) (54)
Net cash used in investing activities (25) (54)
Financing activities:    
Proceeds from issuing common stock and warrant exercises, net of issuance costs 21,001 18,307
Payment of preferred stock dividend (151) (151)
Net cash provided by financing activities 20,850 18,156
Effect of exchange rate changes on cash and cash equivalents (21) (75)
Net increase in cash and cash equivalents 6,813 11,245
Cash and cash equivalents, beginning of period 33,406 11,885
Cash and cash equivalents, end of period 40,219 23,130
Supplemental cash flow information:    
Interest 13 36
Taxes 1,352 0
Non cash financing activities:    
Accrual of preferred stock dividends $ 50 $ 50