Accounting policies - Goodwill and intangible assets (Details) - USD ($)	Jan. 04, 2023	Jun. 30, 2024	Dec. 31, 2023	Dec. 31, 2021	Dec. 31, 2020
Goodwill		$ 12,861,404	$ 12,861,404
Intangible assets, net		3,025,000	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		2,410,556	2,692,074
Manufacturing Units [Member]
Goodwill		1,985,211	1,985,211
Intangible assets, net		$ 614,444	$ 661,111
PERC Water Corporation
Ownership interest acquired	39.00%			61.00%	61.00%
Amount of consideration paid	$ 2,400,000