CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Loss	$ 232,387	$ 57,358
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	254	256
Goodwill and in-process research & development impairments	54,345	0
Contingent stock right remeasurement	84,726	0
Loss from disposal and sale of fixed assets	0	7
Changes in marketable securities and bank deposits, net	(142)	(269)
Changes in accrued liability for employee severance benefits, net of retirement fund profit	(15)	52
Stock-based compensation	15,147	3,606
Non-cash finance (income) expenses, net	(727)	85
Changes in operating assets and liabilities, net of effects of businesses acquired:
(Increase) decrease in trade receivables, prepaid and other assets	(11,383)	1,086
Increase in other non-current assets	(4,430)	(124)
(Decrease) increase in accounts payable and accruals	(11,801)	1,511
Increase in inventory	(5,294)	0
Net cash used in operating activities	(111,707)	(51,148)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of fixed assets	(113)	(861)
Proceeds from sale of fixed assets	0	24
Investment in marketable securities	0	(48,001)
Cash acquired through merger	38,641	0
Proceeds from sale and maturity of marketable securities	48,577	84,673
Net cash provided by investing activities	87,105	35,835
CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds related to issuance of ordinary shares through offerings, net of issuance costs	53,646	13,714
Proceeds from debt financing and issuance of warrants, net of issuance costs	0	14,196
Proceeds related to issuance of stock for stock-based compensation arrangements, net	182	44
Net cash provided by financing activities	53,828	27,954
INCREASE IN CASH, CASH EQUIVALENTS AND RESTRICTED CASH	29,226	12,641
EFFECT OF EXCHANGE RATE ON CASH, CASH EQUIVALENTS AND RESTRICTED CASH	1	25
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT BEGINNING OF THE PERIOD	44,584	28,118
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF THE PERIOD	73,811	40,784
TOTAL CASH, CASH EQUIVALENTS AND RESTRICTED CASH SHOWN IN STATEMENT OF CASH FLOWS	73,811	40,784
SUPPLEMENTARY INFORMATION ON INVESTING AND FINANCING ACTIVITIES NOT INVOLVING CASH FLOWS -
Cashless exercise of warrants and restricted stock units		7
Issuance of shares under employee stock purchase plan	163	0
Additions to operating lease right of use assets	1,120	1,193
Additions to operating lease liabilities	1,120	1,175
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Interest received	232	1,125
Interest paid	2,936	289
Fair value of assets acquired	117,270	0
Less liabilities assumed	5,827	0
Net acquired (See “Note 3- Business combination”)	111,443	0
Less cash acquired	38,641	0
Merger net of cash acquired	$ 72,802	$ 0