INTERIM CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Cash flows from operating activities:    
Net loss $ (5,360) $ (6,662)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation 74 61
Stock-based compensation related to options granted to employees and directors 505 290
Change in operating lease liability (117) (293)
Decrease in other accounts receivable and prepaid expenses 323 322
Increase (decrease) in trade payables 870 (2,865)
Increase in other accounts payable and accrued expenses 17 179
Total net cash used in operating activities (3,688) (8,968)
Cash flows from investing activities:    
Purchase of property and equipment (9) (30)
Changes in short-term deposit (8) (7)
Total net cash used in investing activities (17) (37)
Cash flows from financing activities:    
Proceeds from exercise of options   5
Proceeds from issuance of shares in at-the-market (ATM) offering (Note 7)   7,104
Total net cash provided by financing activities   7,109
Decrease in cash and cash equivalents (3,705) (1,896)
Cash and cash equivalents at the beginning of the period 18,856 37,829
Cash and cash equivalents at end of the period $ 15,151 35,933
Supplemental schedule of non-cash transactions    
Right of use lease asset and liability   $ 85