UNAUDITED CONSOLIDATED STATEMENTS OF INCOME/(LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Operating income/(expense:):
Gain on disposal of mineral property interests, net (Note 4)	$ 3,540		$ 6,108
Exploration, property evaluation and holding costs	(1,034)	$ (1,401)	(2,942)	$ (3,294)
Corporate administration	(891)	(865)	(3,144)	(3,079)
Depreciation and amortization	(11)	(14)	(34)	(40)
Total operating income/(expense)	1,604	(2,280)	(12)	(6,413)
Non-operating income/(expense):
Gain/(loss) on other investments (Note 3)	2,437	(234)	2,407	(1,951)
Interest income	1	27	15	103
Other income/(loss)	178	(11)	212	67
Total non-operating income/(expense)	2,616	(218)	2,634	(1,781)
Income/(loss) before income taxes	4,220	(2,498)	2,622	(8,194)
Net income/(loss)	$ 4,220	$ (2,498)	$ 2,622	$ (8,194)
Basic:
Weighted average number of shares outstanding (in shares)	102,368,232	100,606,542	101,482,849	100,490,309
Net income/(loss) per share (Note 6), Basic (in dollars per share)	$ 0.05	$ (0.02)	$ 0.03	$ (0.08)
Diluted:
Weighted average number of shares outstanding (in shares)	105,504,340	100,606,542	103,992,868	100,490,309
Net income/(loss) per share, Diluted (in dollars per share)	$ 0.05	$ (0.02)	$ 0.03	$ (0.08)