Segment information - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Retail [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	$ 637,796	$ 632,953	$ 1,253,481	$ 1,267,208
Bulk [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	704,841	906,292	1,407,100	1,860,052
Services [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	168,078	204,000	327,077	404,495
Manufacturing Units [Member]
Segment Reporting Information [Line Items]
Depreciation, Depletion and Amortization	$ 70,307	$ 70,134	$ 141,515	$ 145,667