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Note 5 - Inventories (Tables)

6 Months Ended

Jun. 30, 2025

Notes Tables

Schedule of Inventory, Current [Table Text Block]

		June 30,				December 31,
		2025				2024
Raw materials		$	3,405,195			$	2,734,781
Work in process			1,890,956				2,435,280
Finished goods and filtration systems			1,619,526				1,580,255
Reserve for obsolescence			(1,400,788	)			(1,209,124	)
Total inventories, net		$	5,514,889			$	5,541,192

X

- Definition

Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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