Consolidated Balance Sheets - USD ($)	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 1,435,225	$ 115,506
Certificates of deposit	254,213	253,552
Accounts receivable	222,054	284,453
Inventories	565,050	626,244
Total current assets	2,476,542	1,279,755
Properties, plants and equipment, net	11,421,503	12,186,848
Restricted cash for reclamation bonds	57,261	57,261
IVA receivable and other assets	159,992	170,111
Total assets	14,115,298	13,693,975
Current liabilities:
Checks issued and payable	14,754	17,633
Accounts payable	2,076,794	2,328,977
Due to factor	5,848	10,880
Accrued payroll, taxes and interest	215,973	260,800
Other accrued liabilities	404,804	334,208
Payables to related party	253,564	359,309
Deferred revenue	32,400	32,400
Notes payable to bank	150,796	197,066
Hillgrove advances payable (Note 10)	378,074	378,074
Long-term debt, current portion	55,956	56,334
Total current liabilities	3,588,963	3,975,681
Long-term debt, net of current portion	46,264	76,762
Hillgrove advances payable (Note 10)	756,147	756,147
Note payable-SBA (Note 15)	443,400	0
Stock payable to directors for services	93,750	134,375
Asset retirement obligations and accrued reclamation costs	289,986	283,868
Total liabilities	5,218,510	5,226,833
Commitments and contingencies (Note 4 and 10)
Stockholders' equity:
Common stock, $0.01 par value, 90,000,000 shares authorized; 75,949,757 and 69,661,436 shares issued and outstanding, respectively	759,496	696,614
Additional paid-in capital	39,050,899	37,107,730
Accumulated deficit	(30,940,395)	(29,363,990)
Total stockholders' equity	8,896,788	8,467,142
Total liabilities and stockholders' equity	14,115,298	13,693,975
Series A
Stockholders' equity:
Preferred stock $0.01 par value, 10,000,000 shares authorized	0	0
Series B
Stockholders' equity:
Preferred stock $0.01 par value, 10,000,000 shares authorized	7,500	7,500
Series C
Stockholders' equity:
Preferred stock $0.01 par value, 10,000,000 shares authorized	1,779	1,779
Series D
Stockholders' equity:
Preferred stock $0.01 par value, 10,000,000 shares authorized	$ 17,509	$ 17,509