Summary of Significant Accounting Policies - Narrative (Details)	12 Months Ended
	Dec. 31, 2023 USD ($) agreement shares	Dec. 31, 2022 USD ($) shares
Summary of significant accounting policies
Customers average payment term	30 days
Distributors average payment term	60 days
Number of distribution and license agreements | agreement	5
Purchase forecasts period	9 months
Contract assets	$ 0	$ 0
Revenue recognized from contract liabilities	3,810,000	3,826,000
Revenue performance obligation	500,000	2,900,000
Impairments of long-lived assets	0	0
Research and product development expense	1,107,000	3,119,000
Impairment	0	$ 0
DaVita
Summary of significant accounting policies
Product purchase agreement, One time payment from counterparty	$ 400,000
PIPE Purchase Agreement Pre-Funded Warrant
Summary of significant accounting policies
Warrants exercised (in shares) | shares	6,300,000	1,488,480
Minimum
Summary of significant accounting policies
Property and equipment useful life	3 years
Market and performance-based stock unit awards service period	1 year
Maximum
Summary of significant accounting policies
Property and equipment useful life	10 years
Market and performance-based stock unit awards service period	2 years
Total Concentrate Products
Summary of significant accounting policies
Reserve for returns	$ 0	$ 0