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Note 12 - Segment Reporting - Summary of Segment Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Revenue	$ 14,604,618	$ 18,001,652
Net loss	(10,345,258)	(8,571,145)
Segment assets	32,427,479	35,971,847
Water Segment [Member]
Revenue	5,538,741	7,705,080
Net loss	(2,149,224)	(736,148)
Segment assets	8,235,726	9,432,991
Water Segment [Member] | Operating Segments [Member]
Revenue	5,538,741	7,705,080
Ceramics Segment [Member]
Revenue	5,634,973	6,232,628
Net loss	(3,322,800)	(2,640,895)
Segment assets	10,679,025	14,550,872
Ceramics Segment [Member] | Operating Segments [Member]
Revenue	5,634,973	6,232,628
Plastics Segment [Member]
Revenue	3,381,408	3,736,529
Plastics Segment [Member] | Operating Segments [Member]
Revenue	3,381,408	3,736,529
Plastic Products [Member]
Net loss	(1,304,295)	(660,896)
Segment assets	1,670,644	759,745
Other Operating Segment [Member]
Net loss	(3,568,939)	(4,533,206)
Segment assets	11,842,084	11,228,239
Other Operating Segment [Member] | Operating Segments [Member]
Revenue	$ 49,496	$ 327,415

X

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