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Condensed Consolidated Balance Sheets - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Current assets:    
Cash and cash equivalents $ 21,563,500 $ 665,102
Certificates of deposit 44,028 254,212
Accounts receivable 722,727  
Inventories (Note 5) 733,956 650,213
Total current assets 23,064,211 1,808,161
Properties, plants and equipment, net (Note 13) 11,176,469 11,225,594
Restricted cash for reclamation bonds 57,275 57,275
IVA receivable and other assets 239,084 208,472
Total assets 34,537,039 13,299,502
Current liabilities:    
Checks issued and payable 0 86,685
Accounts payable 1,252,846 1,876,874
Accrued liabilities (Note 6) 571,209 635,626
Payables to related party (Note 9) 171,017 227,432
Notes payable to bank (Note 7) 0 100,000
Export tax assessment payable (Note 11) 0 1,120,730
Hillgrove advances payable (Note 12) 0 378,074
Long-term debt, current portion (Note 8) 0 52,122
Total current liabilities 1,824,055 4,477,543
Long-term debt, net of current portion (Note 8) 0 34,304
Hillgrove advances payable (Note 12) 0 756,147
CARES Act note payable (Note 14) 0 443,400
Stock payable to directors for services (Note 10) 84,375 110,000
Asset retirement obligations and accrued reclamation costs 296,916 291,719
Total liabilities 2,205,346 6,113,113
Stockholders' equity:    
Common stock, $0.01 par value, 150,000,000 shares authorized; 106,117,844 and 75,949,757 shares issued and outstanding, respectively 1,061,177 759,496
Additional paid-in capital 63,992,101 39,050,899
Accumulated deficit (32,748,373) (32,650,794)
Total stockholders' equity 32,331,693 7,186,389
Total liabilities and stockholders' equity 34,537,039 13,299,502
Series A    
Stockholders' equity:    
Series A: -0- shares issued and outstanding 0 0
Series B    
Stockholders' equity:    
Series A: -0- shares issued and outstanding 7,500 7,500
Series C    
Stockholders' equity:    
Series A: -0- shares issued and outstanding 1,779 1,779
Series D    
Stockholders' equity:    
Series A: -0- shares issued and outstanding $ 17,509 $ 17,509