Consolidated Balance Sheets - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 115,506	$ 56,650
Certificates of deposit	253,552	252,954
Accounts receivable	284,453	438,391
Inventories	626,244	755,261
Note receivable - sale of land	0	400,000
Total current assets	1,279,755	1,903,256
Properties, plants and equipment, net	12,186,848	15,227,172
Restricted cash for reclamation bonds	57,261	57,247
IVA receivable and other assets	170,111	369,448
Total assets	13,693,975	17,557,123
Current liabilities:
Checks issued and payable	17,633	46,482
Accounts payable	2,328,977	1,926,320
Due to factor	10,880	16,524
Accrued payroll, taxes and interest	260,800	159,037
Other accrued liabilities	334,208	353,911
Payables to related party	359,309	93,567
Deferred revenue	32,400	32,400
Notes payable to bank	197,066	183,917
Hillgrove advances payable (Note 10)	378,074	0
Long-term debt, current portion, net of discount	56,334	705,460
Total current liabilities	3,975,681	3,517,618
Long-term debt, net of discount and current portion	76,762	1,027,730
Hillgrove advances payable (Note 10)	756,147	1,134,221
Stock payable to directors for services	134,375	175,000
Asset retirement obligation and accrued reclamation costs	283,868	277,720
Total liabilities	5,226,833	6,132,289
Commitments and contingencies (Note 4, 10 and 16)
Stockholders' equity:
Common stock, $0.01 par value, 90,000,000 shares authorized; 69,661,436 and 68,227,171 shares issued and outstanding, respectively	696,614	682,271
Additional paid-in capital	37,107,730	36,406,874
Accumulated deficit	(29,363,990)	(25,691,099)
Total stockholders' equity	8,467,142	11,424,834
Total liabilities and stockholders' equity	13,693,975	17,557,123
Series A Preferred Stock
Stockholders' equity:
Preferred stock	0	0
Series B Preferred Stock
Stockholders' equity:
Preferred stock	7,500	7,500
Series C Preferred Stock
Stockholders' equity:
Preferred stock	1,779	1,779
Series D Preferred Stock
Stockholders' equity:
Preferred stock	$ 17,509	$ 17,509