Other Income and Expense (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Other Income and Expenses [Abstract]
Change in estimated fair value of contingent forward asset	$ 351,091	$ 1,100,000	$ 0	$ 1,413,382	$ 0
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		0	20,000	0
Unrealized gain on Tonogold shares	1,620,929		0	1,335,929	0
Realized gain on sale of Tonogold shares	23,740		0	23,740	0
Preferred shares issuance cost	0		(432,000)	0	(432,000)
Make whole obligations	198,487		(34,946)	162,711	100,216
Recognition of PPP proceeds	193,546		0	193,546	0
Gain on sale of assets and mining claims	0		6,250	100,000	6,250
Reimbursement from Tonogold	0		0	150,000	0
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)