Consolidated Balance Sheets - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 23,068	$ 115,506
Certificates of deposit	254,212	253,552
Accounts receivable, net	229,692	284,453
Inventories	642,893	626,244
Total current assets	1,149,865	1,279,755
Properties, plants and equipment, net	12,056,838	12,186,848
Restricted cash for reclamation bonds	57,261	57,261
IVA receivable and other assets	168,028	170,111
Total assets	13,431,992	13,693,975
Current liabilities:
Checks issued and payable	73,735	17,633
Accounts payable	2,304,449	2,328,977
Due to factor	17,227	10,880
Accrued payroll, taxes and interest	222,653	260,800
Other accrued liabilities	357,982	334,208
Payables to related party	297,799	359,309
Deferred revenue	32,400	32,400
Notes payable to bank	199,554	197,066
Hillgrove advances payable (Note 10)	378,074	378,074
Long-term debt, current portion	55,802	56,334
Total current liabilities	3,939,675	3,975,681
Long-term debt, net of current portion	66,388	76,762
Hillgrove advances payable	756,147	756,147
Stock payable to directors for services	162,500	134,375
Asset retirement obligations and accrued reclamation costs	286,522	283,868
Total liabilities	5,211,232	5,226,833
Commitments and contingencies (Note 4 and 10)
Stockholders' equity:
Common stock, $0.01 par value, 90,000,000 shares authorized; 69,911,436 and 69,661,436 shares issued and outstanding, respectively	699,114	696,614
Additional paid-in capital	37,167,730	37,107,730
Accumulated deficit	(29,672,872)	(29,363,990)
Total stockholders' equity	8,220,760	8,467,142
Total liabilities and stockholders' equity	13,431,992	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