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Revenue and Segment Information - Schedule of Information by Operating Segment (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Revenues:      
Revenues from sales of product $ 15,014 $ 24,122 $ 24,306
Cost of sales:      
Cost of sales 11,084 11,338 11,656
Segment results:      
Gross profit 3,930 12,784 12,650
Sales of primarily-processed teas [Member]      
Revenues:      
Revenues from sales of product 13,815 23,683 24,290
Cost of sales:      
Cost of sales 10,427 11,269 11,653
Segment results:      
Gross profit 3,388 12,414 12,637
Sales of refined teas [Member]      
Revenues:      
Revenues from sales of product 1,199 439 16
Cost of sales:      
Cost of sales 657 69 3
Segment results:      
Gross profit $ 542 $ 370 $ 13