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Accounting policies - Goodwill and intangible assets (Details) - USD ($)	1 Months Ended	6 Months Ended	12 Months Ended
	Jan. 31, 2023	Jun. 30, 2021	Dec. 31, 2022	Dec. 31, 2020	Dec. 31, 2023	Jan. 04, 2023
Goodwill			$ 10,425,013		$ 12,861,404
Intangible assets, net			2,818,888		3,353,185
Retail [Member]
Goodwill			1,170,511		1,170,511
Bulk [Member]
Goodwill			1,948,875		1,948,875
Services [Member]
Goodwill			5,320,416		7,756,807
Intangible assets, net			2,064,444		2,692,074
Manufacturing Units [Member]
Goodwill			1,985,211		1,985,211
Intangible assets, net			$ 754,444		$ 661,111
Aerex \| Manufacturing Units [Member]
Estimated Fair Value Carrying Amount Exceeded Percentage			63	31
Estimated Fair Value carrying Amount Exceeded Value		$ 2,900,000
Aerex \| Discounted Cash Flow Method [Member] \| Manufacturing Units [Member]
Estimated Fair Value Percentage Segment Reporting Information		80.00%	80.00%	80.00%
Aerex \| Guideline Public Company Method [Member] \| Manufacturing Units [Member]
Estimated Fair Value Percentage Segment Reporting Information		20.00%	20.00%	20.00%
PERC Water Corporation
Ownership interest acquired	39.00%					39.00%
Amount of consideration paid	$ 2,400,000
Estimated Fair Value Percentage Segment Reporting Information			79.00%