Consolidated Statements of Operations (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement [Abstract]
Revenues	$ 1,007,231	$ 1,787,934	$ 4,335,413	$ 6,516,582
Cost of revenues	1,442,322	2,058,751	4,685,388	7,029,647
Gross profit (loss)	(435,091)	(270,817)	(349,975)	(513,065)
OPERATING EXPENSES:
General and administrative	108,643	139,456	425,174	498,539
Salaries and benefits	82,308	91,178	288,455	424,208
Other operating expenses	0	0	24,250	86,630
Professional fees	43,557	40,010	161,167	163,204
Loss on abandonment of mineral properties	(318,502)	0	(318,502)	0
Total operating expenses	553,010	270,644	1,217,548	1,172,581
Income (loss) from operations	(988,101)	(541,461)	(1,567,523)	(1,685,646)
OTHER INCOME (EXPENSE):
Interest income	19	19	854	791
Interest expense	(3,750)	(24,444)	(14,937)	(71,160)
Grant income (Note 15)	0	0	10,000	0
Factoring expense	(1,408)	(2,706)	(4,799)	(6,076)
Total other income (expense)	(5,139)	(27,131)	(8,882)	(76,445)
Net income (loss)	$ (993,240)	$ (568,592)	$ (1,576,405)	$ (1,762,091)
Preferred dividends	$ (12,162)	$ (12,162)	$ (36,487)	$ (36,487)
Net income (loss) available to common stockholders	$ (1,005,402)	$ (580,754)	$ (1,612,892)	$ (1,798,578)
Net income (loss) per share of common stock:
Basic and diluted	$ (0.01)	$ (0.01)	$ (0.02)	$ (0.03)
Weighted average shares outstanding:
Basic and diluted	73,240,218	69,224,297	71,033,733	68,818,050