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Consolidated Balance Sheets - USD ($)
Sep. 30, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 519,282 $ 27,987
Certificates of deposit 252,954 252,298
Accounts receivable, net 574,216 362,579
Inventories 716,896 914,709
Other current assets 0 4,697
Total current assets 2,063,348 1,562,270
Properties, plants and equipment, net 14,866,458 15,132,897
Restricted cash for reclamation bonds 57,234 63,345
IVA receivable and other assets 464,334 372,742
Total assets 17,451,374 17,131,254
Current liabilities:    
Checks issued and payable 41,820 28,248
Accounts payable 2,304,976 2,276,357
Due to factor 16,048 10,880
Accrued payroll, taxes and interest 135,299 185,283
Other accrued liabilities 330,064 168,578
Payables to related parties 56,337 22,668
Deferred revenue 32,400 60,049
Notes payable to bank 100,000 192,565
Income taxes payable (Note 11) 0 443,110
Long-term debt, current portion, net of discount 669,407 546,988
Total current liabilities 3,686,351 3,934,726
Long-term debt, net of discount and current portion 1,001,563 1,239,126
Hillgrove advances payable 1,134,196 1,134,221
Common stock payable to directors for services 131,250 175,000
Asset retirement obligations and accrued reclamation costs 276,183 271,572
Total liabilities 6,229,543 6,754,645
Commitments and contingencies (Note 7 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 both years) 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; 68,227,171 and 67,488,063 shares issued and outstanding, respectively 682,271 674,881
Additional paid-in capital 36,406,874 36,239,264
Accumulated deficit (25,894,102) (26,564,324)
Total stockholders' equity 11,221,831 10,376,609
Total liabilities and stockholders' equity $ 17,451,374 $ 17,131,254