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4. Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2018

Revenue Recognition Tables Abstract

Disaggregation of Revenue

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2018				2017				2018				2017
Antimony		$	1,366,540			$	1,796,776			$	4,540,873			$	5,860,584
Zeolite			653,365				494,694				2,026,605				1,723,120
Precious metals			71,820				78,244				213,523				243,821
		$	2,091,725			$	2,369,714			$	6,781,001			$	7,827,525

Sales of products to significant customers

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2018				2017				2018				2017
Antimony		$	1,366,540			$	1,796,776			$	4,540,873			$	5,860,584
Zeolite			653,365				494,694				2,026,605				1,723,120
Precious metals			71,820				78,244				213,523				243,821
		$	2,091,725			$	2,369,714			$	6,781,001			$	7,827,525

		Three Months Ended								Nine Months Ended
		September 30,								September 30,
		2018				2017				2018				2017
United States		$	1,876,218			$	2,208,417			$	6,151,068			$	7,284,803
Canada			215,507				161,297				629,933				542,722
		$	2,091,725			$	2,369,714			$	6,781,001			$	7,827,525

		For the Three Months Ended								For the Nine Months Ended
Sales to Three		September 30,				September 30,				September 30,				September 30,
Largest Customers		2018				2017				2018				2017
Ampacet Corporation		$	142,414			$	150,234			$	472,674			$	-
Mexichem Specialty Compounds Inc.			587,568				909,965				1,985,249				2,466,388
Kohler Corporation			471,358				512,451				1,122,908				1,458,949
East Penn Corporation			-				-				-				512,641
		$	1,201,340			$	1,572,650			$	3,580,831			$	4,437,978
% of Total Revenues			57	%			66	%			53	%			57	%

Three Largest
Accounts Receivable		September 30, 2018				December 31, 2017
Kohler Corporation		$	154,903			$	169,991
Earth Innovations Inc.			36,107				31,522
Axens North America, Inc.			38,403				31,237
		$	229,413			$	232,750
% of Total Receivables			40	%			47	%

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- References

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130545-203045

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- Definition

Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer.

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