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Note 2 - Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Total revenues	$ 20,325	$ 17,627	$ 54,972	$ 55,995
UNITED STATES
Total revenues	19,396	16,602	52,354	52,482
MEXICO
Total revenues	929	1,025	2,618	3,513
Natural Gas, Gathering, Transportation, Marketing and Processing [Member]
Total revenues	17,526	14,256	46,100	44,295
Rental [Member]
Total revenues	1,374	1,614	4,220	5,469
Service [Member]
Total revenues	1,245	1,681	4,119	5,298
Product and Service, Other [Member]
Total revenues	$ 180	$ 76	$ 533	$ 933

X

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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