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Note 13 - Segment Reporting - Summary of Segment Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue	$ 18,273,442	$ 22,526,201
Revenue	18,273,442	22,526,201
Net Income (Loss)	(11,126,960)	(9,808,360)
Segment assets	45,054,692	42,210,137
Water Segment [Member]
Net Income (Loss)	(1,411,196)	(1,083,578)
Segment assets	7,767,679	14,033,107
Water Segment [Member] | Operating Segments [Member]
Revenue	7,196,465	13,615,904
Revenue	7,196,465	13,615,904
Ceramics Segment [Member]
Net Income (Loss)	(3,330,840)	(3,532,137)
Segment assets	13,961,057	16,734,371
Ceramics Segment [Member] | Operating Segments [Member]
Revenue	7,183,868	5,663,830
Revenue	7,183,868	5,663,830
Plastics Segment [Member] | Operating Segments [Member]
Revenue	3,615,681	2,647,366
Revenue	3,615,681	2,647,366
Plastic Products [Member]
Net Income (Loss)	(1,317,293)	(882,038)
Segment assets	1,645,879	2,022,381
Other Segments [Member]
Net Income (Loss)	(5,067,631)	(4,310,607)
Segment assets	21,680,077	9,420,278
Other Segments [Member] | Operating Segments [Member]
Revenue	277,428	599,101
Revenue	$ 277,428	$ 599,101

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