12. Segments, Products and Customers (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2020	Dec. 31, 2019
Total sales		$ 102,026	$ 93,662
Total sales percentage		100.00%	100.00%
Drinkable Kefir Other Than ProBugs [Member]
Total sales		$ 81,437	$ 71,822
Total sales percentage		80.00%	77.00%
Cheese [Member]
Total sales		$ 12,905	$ 11,459
Total sales percentage		13.00%	12.00%
Cream and Other [Member]
Total sales		$ 2,872	$ 4,228
Total sales percentage		3.00%	4.00%
ProBugs Kefir [Member]
Total sales		$ 2,733	$ 2,780
Total sales percentage		2.00%	3.00%
Other Dairy [Member]
Total sales		$ 1,594	$ 1,756
Total sales percentage		1.00%	2.00%
Frozen Kefir [Member]
Total sales	[1]	$ 485	$ 1,617
Total sales percentage	[1]	1.00%	2.00%

[1] Includes Lifeway Kefir Shop sales