Consolidated Balance Sheets - USD ($)	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 24,550	$ 10,057
Certificates of deposit	252,298	251,641
Accounts receivable, net	541,284	552,119
Inventories	806,441	855,637
Other current assets	30,748	23,101
Total current assets	1,655,321	1,692,555
Properties, plants and equipment, net	15,417,160	15,695,966
Restricted cash for reclamation bonds	63,274	63,274
Foreign value added tax refund receivable	365,120	276,500
Other assets	32,520	37,703
Total assets	17,533,395	17,765,998
Current liabilities:
Checks issued and payable	22,906	35,682
Accounts payable	1,864,415	1,797,251
Due to factor	170,870	150,399
Accrued payroll, taxes and interest	173,333	213,695
Other accrued liabilities	154,659	122,968
Payables to related parties	16,759	14,525
Deferred revenue	78,730	78,730
Notes payable to bank	192,144	167,317
Income taxes payable (Note 11)	462,152	410,510
Long-term debt, current portion, net of discount	462,524	391,046
Total current liabilities	3,598,492	3,382,123
Long-term debt, net of discount and current portion	1,341,780	1,472,869
Hillgrove advances payable (Note 8)	1,134,201	1,134,221
Common stock payable to directors for services	87,500	168,750
Asset retirement obligations and accrued reclamation costs	268,677	265,782
Total liabilities	6,430,650	6,423,745
Commitments and contingencies (Note 5 and 11)
Stockholders' equity:
Preferred stock $0.01 par value, 10,000,000 shares authorized: Series A: -0- shares issued and outstanding	0	0
Series B: 750,000 shares issued and outstanding (liquidation preference $909,375 and $907,500 respectively)	7,500	7,500
Series C: 177,904 shares issued and outstanding (liquidation preference $97,847)	1,779	1,779
Series D: 1,751,005 shares issued and outstanding (liquidation preference $5,014,692 and $4,920,178 respectively)	17,509	17,509
Common stock, $0.01 par value, 90,000,000 shares authorized; 67,488,153 and 67,066,278 shares issued and outstanding, respectively	674,881	670,662
Additional paid-in capital	36,239,264	36,074,733
Accumulated deficit	(25,838,188)	(25,429,930)
Total stockholders' equity	11,102,745	11,342,253
Total liabilities and stockholders' equity	$ 17,533,395	$ 17,765,998