INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Cash flows from operating activities:        
Net loss $ (5,336) $ (4,488) $ (18,267) $ (19,996)
Adjustments to reconcile net loss to net cash used in operating activities:        
Depreciation 67 56 190 155
Stock-based compensation related to options granted to employees and directors 196 1,017 726 2,198
Change in operating lease liability 8 (11) (182) (61)
Decrease (increase) in other accounts receivable and prepaid expenses 516 (1,095) 1,243 1,267
Decrease in trade payables (261) (1,321) (2,678) (11,394)
Increase (decrease) in other accounts payable and accrued expenses (1,650) (1,082) (1,789) 216
Total net cash used in operating activities (6,460) (6,924) (20,757) (27,615)
Cash flows from investing activities:        
Purchase of property and equipment (237) (88) (295) (145)
Changes in short-term deposit 1,933 2 1,915 (4,005)
Total net cash provided by (used in) investing activities 1,696 (86) 1,620 (4,150)
Cash flows from financing activities:        
Proceeds from exercise of options   20 5 52
Proceeds from issuance of shares in at-the-market (ATM) offering (Note 7) (106) 13,307 6,998 39,690
Proceeds from issuance of shares and warrants in Registered Direct Offering (Note 7)       9,957
Proceeds from exercise of warrants   6,300   6,300
Total net cash provided by (used in) financing activities (106) 19,627 7,003 55,999
Increase (decrease) in cash and cash equivalents (4,870) 12,617 (12,134) 24,234
Cash and cash equivalents at the beginning of the period 30,565 12,153 37,829 536
Cash and cash equivalents at end of the period $ 25,695 $ 24,770 $ 25,695 $ 24,770