CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash Flows From Operating Activities:
Net Loss	$ 20,550	$ 40,233
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	27	93
Changes in marketable securities and bank deposits, net	0	(153)
Changes in accrued liability for employee severance benefits, net of retirement fund profit	(108)	(13)
Stock-based compensation	2,442	1,759
Non-cash finance income, net	(66)	(347)
Changes in operating assets and liabilities, net of effects of businesses acquired:
Decrease (increase) in trade receivables, prepaid and other assets	5,783	(9,297)
Decrease (increase) in other non-current assets	404	(3,027)
Increase in accounts payable and accruals	205	856
Increase in inventory	(688)	(1,849)
Net cash used in operating activities	(12,551)	(52,211)
Cash Flows From Investing Activities:
Purchase of fixed assets	0	(42)
Cash acquired through merger	0	38,641
Proceeds from sale and maturity of marketable securities	0	27,381
Net cash provided by investing activities	0	65,980
Cash Flows From Financing Activities:
Proceeds related to issuance of common shares through offerings, net of issuance costs	73,127	0
Proceeds related to issuance of stock for stock-based compensation arrangements, net	376	140
Net cash provided by financing activities	73,503	140
Increase in cash, cash equivalents and restricted cash	60,952	13,909
Effect of exchange rate on cash, cash equivalents and restricted cash	1	(37)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF THE PERIOD	58,418	44,584
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF THE PERIOD	119,371	58,456
Total cash, cash equivalents and restricted cash shown in statement of cash flows	119,371	58,456
Supplementary information on investing and financing activities not involving cash flows:
Issuance of shares under employee stock purchase plan	0	163
Additions to operating lease right of use assets	0	287
Additions to operating lease liabilities	0	287
Supplemental disclosure of cash flow information:
Interest received	5	177
Interest paid	963	973
Fair value of assets acquired	0	117,270
Less liabilities assumed	0	5,827
Net acquired (See “Note 3- Business combination”)	0	111,443
Less cash acquired	0	38,641
Merger net of cash acquired	$ 0	$ 72,802