CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 346	$ 462
Short-term investments	5,870	5,087
Investments in marketable equity securities, at fair value	940	1,307
Prepaid expenses and other	81	303
Total current assets	7,237	7,159
Mineral properties	16,316	16,306
Other assets	165	154
Total assets	23,718	23,619
Current liabilities:
Accounts payable	490	239
Operating lease liability	42	37
Total current liabilities	532	276
Long-term liabilities
Asset retirement obligation - Lik	125	125
Operating lease liability	14	35
Total long-term liabilities	139	160
Equity: Shareholders' equity:
Preferred stock, $0.01 par value, authorized 10,000,000 shares (none issued and outstanding at June 30, 2022 and December 31, 2021)	0	0
Common stock, $0.01 par value, authorized 100,000,000 shares (64,768,873 and 62,036,399 shares, respectively, issued and outstanding at June 30, 2022 and December 31, 2021)	648	620
Additional paid-in capital	74,564	72,523
Accumulated deficit	(52,165)	(49,960)
Total shareholders' equity	23,047	23,183
Total liabilities and shareholders' equity	$ 23,718	$ 23,619