17. Business Segments (Details 2) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Revenues	$ 9,034,403	$ 10,229,978
Depreciation and amortization	904,844	968,888
Income (loss) from operations	547,036	(959,699)
Other income (expense)	(6,143)	(174,695)
Income tax benefit	332,332	0
NET INCOME (LOSS)	873,225	(1,134,394)
USA Antimony [Member]
Revenues	6,113,014	7,588,470
Depreciation and amortization	52,681	57,761
Income (loss) from operations	3,046,782	1,965,573
Other income (expense)	(8,051)	(35,853)
Income tax benefit	0	0
NET INCOME (LOSS)	3,038,731	1,929,720
Mexico Antimony [Member]
Revenues	0	0
Depreciation and amortization	595,318	623,899
Income (loss) from operations	(3,148,092)	(3,579,810)
Other income (expense)	13,890	(126,149)
Income tax benefit	332,332	0
NET INCOME (LOSS)	(2,801,870)	(3,705,959)
Antimony [Member]
Revenues	6,113,014	7,588,470
Depreciation and amortization	647,999	681,660
Income (loss) from operations	(101,310)	(1,614,237)
Other income (expense)	5,839	(162,002)
Income tax benefit	332,332	0
NET INCOME (LOSS)	236,861	(1,776,239)
Precious Metals [Member]
Revenues	254,445	374,872
Depreciation and amortization	68,042	64,499
Income (loss) from operations	186,403	310,373
Other income (expense)	0	0
Income tax benefit	0	0
NET INCOME (LOSS)	186,403	310,373
Zeolite (Member)
Revenues	2,666,944	2,266,636
Depreciation and amortization	188,803	222,729
Income (loss) from operations	461,943	344,165
Other income (expense)	(11,982)	(12,693)
Income tax benefit	0	0
NET INCOME (LOSS)	$ 449,961	$ 331,472