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Note 1 - Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2024

Notes Tables

Financing Receivable, Allowance for Credit Loss [Table Text Block]

		December 31,				December 31,
		2024				2023
Allowance for current expected credit losses at the beginning of the period		$	134,912			$	59,559
Bad debt expense			578,423				82,066
Receivables written off during the periods			(49,577	)			(10,298	)
Effect of exchange rate changes			(26,202	)			3,585
Allowance for current expected credit losses at the end of the period		$	637,556			$	134,912

Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]

		% Distribution								For the Year Ended December 31
		2024				2023				2024				2023
Americas			18	%			12	%		$	2,693,002			$	2,125,460
Asia-Pacific			5	%			14	%			645,044				2,506,215
Europe			71	%			65	%			10,440,040				11,820,674
Middle East & Africa			6	%			9	%			826,532				1,549,303
Totals			100	%			100	%		$	14,604,618			$	18,001,652

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

		% Distribution								For the Year Ended December 31
		2024				2023				2024				2023
Water			38	%			42	%		$	5,538,741			$	7,705,080
Ceramics			39	%			35	%			5,634,973				6,232,628
Plastics			23	%			21	%			3,381,408				3,736,529
Corporate			0	%			2	%			49,496				327,415
Totals			100	%			100	%		$	14,604,618			$	18,001,652

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

		December 31,				December 31,
		2024				2023
Cost incurred		$	2,512,901			$	3,225,728
Unbilled project deliveries			51,442				582,557
VAT			93,961				329,980
Other receivables			20,972				92,619
Prepayments			(1,121,897	)			(1,688,427	)
Deferred Revenue			-				(33,360	)
		$	1,557,379			$	2,509,097
Distributed as follows:
Contract assets		$	1,666,698			$	2,891,744
Contract liabilities			(109,319	)			(382,647	)
		$	1,557,379			$	2,509,097

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