CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash Flows From Operating Activities:
Net Loss	$ (73,329,000)	$ (255,568,000)
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	109,000	341,000
Goodwill and in-process research & development impairments	0	54,345,000
Contingent stock right remeasurement	0	84,726,000
Loss from sale and disposal of fixed assets	93,000	2,101,000
Changes in marketable securities and bank deposits, net	0	(142,000)
Debt prepayment premium	1,432,000	0
Share-based compensation	8,080,000	18,100,000
Non-cash other expense (income), net	2,472,000	(654,000)
Changes in operating asset and liabilities, net of effects of businesses acquired:
Decrease (increase) in trade receivables, prepaid and other assets	7,709,000	(17,138,000)
Decrease (increase) in other non-current assets	841,000	(4,171,000)
(Decrease) in accounts payable and accruals	(2,675,000)	(12,975,000)
(Decrease) increase in inventory	113,000	(6,048,000)
Decrease (increase) in other liabilities	(1,212,000)	1,000
Net cash used in operating activities	(56,367,000)	(137,082,000)
Cash Flows From Investing Activities:
Purchase of fixed assets	0	(113,000)
Cash acquired through merger	0	38,641,000
Proceeds from sale and maturity of marketable securities and bank deposits	1,027,000	50,579,000
Net cash provided by investing activities	1,027,000	89,107,000
Cash Flows From Financing Activities:
Debt repayment (Note 13)	(36,432,000)	0
Proceeds from exercise of options and issuance of shares under the employee shares purchase plan	522,000	310,000
Withholding tax from net exercise of restricted share units	(294,000)	(141,000)
Proceeds from issuance of common stock, net of issuance costs	75,981,000	61,639,000
Net cash provided by financing activities	39,777,000	61,808,000
(Decrease) Increase in cash, cash equivalents and restricted cash	(15,563,000)	13,833,000
Effect of exchange rate on cash, cash equivalents and restricted cash	0	1,000
Cash, cash equivalents and restricted cash at beginning of the year	58,418,000	44,584,000
Cash, cash equivalents and restricted cash at end of the year	42,855,000	58,418,000
Cash and cash equivalents	42,250,000	57,563,000
Restricted cash	605,000	855,000
Total cash, cash equivalents and restricted cash shown in statement of cash flows	42,855,000	58,418,000
Supplementary information on investing and financing activities not involving cash flows:
Issuance of shares under employee share purchase plan	169,000	387,000
Additions to operating lease right of use assets	0	1,350,000
Additions to operating lease liabilities	0	1,350,000
Supplemental disclosure of cash flow information:
Interest received	17,000	102,000
Interest paid	2,385,000	3,941,000
Fair value of assets acquired	0	117,270,000
Less liabilities assumed	0	5,827,000
Net acquired (See “Note 3- Business combination”)	0	111,443,000
Less cash acquired	0	38,641,000
Merger net of cash acquired	$ 0	$ 72,802,000