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Consolidated Balance Sheets - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Current assets:    
Cash and cash equivalents $ 119 $ 17,718
Short-term investments, at fair value 15,250
Investments in marketable equity securities, at fair value 1,339 202
Prepaid expenses and other 89 70
Total current assets 16,797 17,990
Mineral properties 46 19
Other assets 771 45
Total assets 17,614 18,054
Current liabilities:    
Accounts payable 124 175
Other 2 4
Total current liabilities 126 179
Shareholders’ equity:    
Preferred stock, $0.01 par value, authorized 10,000,000 shares (none issued and outstanding at December 31, 2016 and 2015)
Common stock, $0.01 par value, authorized, 100,000,000 shares (38,693,589 and 39,169,189 , respectively, shares issued and outstanding at December 31, 2016 and 2015) 387 392
Additional paid-in capital 55,790 55,063
Accumulated deficit (39,401) (37,691)
Accumulated other comprehensive income 712 111
Total shareholders' equity 17,488 17,875
Total liabilities and shareholders' equity $ 17,614 $ 18,054