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Note 5 - Inventories

9 Months Ended

Sep. 30, 2025

Notes to Financial Statements

Inventory Disclosure [Text Block]

NOTE 5 – INVENTORIES

Inventories consisted of the following on September 30, 2025, and December 31, 2024:

		September 30,				December 31,
		2025				2024
Raw materials		$	3,693,992			$	2,734,781
Work in process			2,039,029				2,435,280
Finished goods and filtration systems			2,071,250				1,580,255
Reserve for obsolescence			(1,378,503	)			(1,209,124	)
Total inventories, net		$	6,425,768			$	5,541,192

Inventory valuation adjustments for excess and obsolete inventory are calculated based on current inventory levels, movements, expected useful lives, and estimated future demand for the products.

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- Definition

The entire disclosure for inventory. Includes, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the classes of inventory, and the nature of the cost elements included in inventory.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 330
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/330/tableOfContent

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