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Note 2 - Revenue Recognition (Tables)

12 Months Ended

Sep. 30, 2025

Notes Tables

Disaggregation of Revenue [Table Text Block]

		YEAR ENDED SEPTEMBER 30,
		2025				2024
Smart Water		$	35,816			$	32,434
Energy Solutions			44,600				58,878
Intelligent Industrial			23,788				24,724
Total		$	104,204			$	116,036

Revenue from External Customers by Geographic Areas [Table Text Block]

		YEAR ENDED SEPTEMBER 30,
		2025				2024
Asia (including Russian Federation)		$	24,986			$	43,831
Canada			2,529				1,578
Europe			4,864				6,430
Mexico			2,746				1,959
South America			843				384
United States			67,311				61,009
Other			925				845
		$	104,204			$	116,036

X

- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

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-Topic 606
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-Name Accounting Standards Codification
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- Definition

Tabular disclosure of revenue from external customers by geographic areas attributed to the entity's country of domicile and to foreign countries from which the entity derives revenue.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 280
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-Section 50
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