Interim Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Operating activities:
Net loss	$ (4,060)	$ (3,503)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation and amortization	34	25
Amortization of discount (premium) on marketable debt security		(7)
Share-based compensation expense	909	610
Changes in assets and liabilities:
Prepaid expenses and other assets	(78)	333
Other payables and accrued liabilities	(693)	(658)
Net cash flows from operating activities	(3,888)	(3,200)
Investing activities:
Purchase of property and equipment	(76)
Proceeds from sales of marketable security	2,521
Purchase of marketable security		(2,496)
Net cash flows from investing activities	2,445	(2,496)
Financing activities:
Issuance of common stock and warrants, net of issuance costs		9,562
Repayment of shareholders investment	(3,375)
Net cash flows from financing activities	(3,375)	9,562
(Decrease) Increse in cash, cash equivalents and restricted cash	(4,818)	3,866
Cash, cash equivalents and restricted cash at beginning of period	33,129	5,263
Cash, cash equivalents and restricted cash at ending of period	28,311	9,129
Non-cash investing and financing activities:
Recognition of right-of-use asset and lease liability upon adoption of ASU 2016-02		630
Supplemental disclosure of cash flow information:
Cash received from interest	$ 31	$ 21