Accounting policies - Goodwill and intangible assets (Details) - USD ($)	Jan. 04, 2023	Mar. 31, 2024	Dec. 31, 2023
Goodwill		$ 12,861,404	$ 12,861,404
Intangible assets, net		3,189,092	3,353,185
Retail [Member]
Goodwill		1,170,511	1,170,511
Bulk [Member]
Goodwill		1,948,875	1,948,875
Services [Member]
Goodwill		7,756,807	7,756,807
Intangible assets, net		2,551,314	2,692,074
Manufacturing Units [Member]
Goodwill		1,985,211	1,985,211
Intangible assets, net		$ 637,778	$ 661,111
PERC Water Corporation
Ownership interest acquired	39.00%
Amount of consideration paid	$ 2,400,000

Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

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