Business Segmentation and Geographical Distribution - Major Customers and Major Vendor (Details)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Customer Concentration Risk | Revenue | A.S. Watson Group | Affiliated Entity | Consumer Products segment
Concentration Risk [Line Items]
Concentration risk, percentage	13.80%	13.00%
Customer Concentration Risk | Accounts Receivable | A.S. Watson Group | Affiliated Entity
Concentration Risk [Line Items]
Concentration risk, percentage	39.60%	31.90%
Customer Concentration Risk | Accounts Receivable | Life Extension
Concentration Risk [Line Items]
Concentration risk, percentage	22.10%	17.70%
Customer Concentration Risk | Accounts Receivable | Persona
Concentration Risk [Line Items]
Concentration risk, percentage	10.30%
Customer Concentration Risk | Accounts Receivable | Amazon Marketplaces
Concentration Risk [Line Items]
Concentration risk, percentage		12.00%
Customer Concentration Risk | Accounts Receivable | Matakana Health
Concentration Risk [Line Items]
Concentration risk, percentage		11.10%
Supplier Concentration Risk | Accounts Payable | Vendor A
Concentration Risk [Line Items]
Concentration risk, percentage	32.10%	39.70%