Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (4,916)	$ (3,767)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation	408	579
Net change in fair value of trading marketable securities	(185)	(309)
Non-cash lease expense	16	21
Changes in operating assets and liabilities:
Prepaid expenses and other current assets	40	101
Accounts payable and accrued liabilities	(368)	(402)
Accounts payable - related parties	14	(9)
Fixed cash payments related to operating leases	(14)	(23)
Net cash used in operating activities	(5,005)	(3,809)
CASH FLOWS FROM INVESTING ACTIVITIES
Investment in trading marketable securities	(481)	(8,154)
Proceeds from disposition of marketable securities	3,500	9,240
Proceeds from disposition of available-for-sale securities	0	1,512
Net cash provided by investing activities	3,019	2,598
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from issuance of common shares for cash, net	55	0
Net cash provided by financing activities	55	0
Effect of exchange rate changes on cash	(3)	42
Net change in cash and cash equivalents	(1,934)	(1,169)
Cash and cash equivalents - beginning of period	2,815	6,888
Cash and cash equivalents - end of period	881	5,719
Supplemental Cash Flow Information
Cash paid for interest	0	0
Cash paid for income taxes	0	0
NON-CASH FINANCING AND INVESTING ACTIVITIES:
Initial recognition of the right-of-use asset and lease liability	$ 111	$ 0