Segment information - Additional Information (Details) - USD ($)	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Retail [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	$ 626,637	$ 615,685
Bulk [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	728,129	702,259
Services [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	171,349	158,999
Manufacturing Units [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	$ 67,963	$ 71,208

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8736-108599

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Name:	us-gaap_DepreciationDepletionAndAmortization
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration