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Other Income and Expense (Tables)
6 Months Ended
Jun. 30, 2020
Other Income and Expenses [Abstract]  
Schedule of Other Nonoperating Income (Expense)

Other income (expense) net consisted of the following:

 
Three Months Ended 
 June 30,
 
Six Months Ended 
 June 30,
 
2020
 
2019
 
2020
 
2019
Change in estimated fair value of contingent forward
$
351,091

 
$

 
$
1,413,382

 
$

Interest expense
(91,656
)
 
(181,907
)
 
(142,244
)
 
(643,045
)
 
 
 
 
 
 
 
 
Interest income
179,558

 
13,239

 
186,026

 
62,275

Mining lease income
10,000

 

 
20,000

 

Unrealized gain on Tonogold shares
1,620,929

 

 
1,335,929

 

Realized gain on sale of Tonogold shares
23,740

 

 
23,740

 

Preferred shares issuance cost

 
(432,000
)
 

 
(432,000
)
Make whole obligations
198,487

 
(34,946
)
 
162,711

 
100,216

Recognition of PPP proceeds
193,546

 

 
193,546

 

Gain on sale of assets and mining claims

 
6,250

 
100,000

 
6,250

Reimbursement from Tonogold

 

 
150,000

 

All other
1,228

 
4,998

 
2,502

 
15,728

Total other income (expense)
2,227,488

 
(442,459
)
 
2,174,454

 
(247,531
)
Total other income (expense), net
$
2,486,923

 
$
(624,366
)
 
$
3,445,592

 
$
(890,576
)