13. Segments, Products and Customers (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Total sales	$ 123,879	$ 118,587
Drinkable Kefir Other Than ProBugs [Member]
Total sales	105,983	100,812
Lifeway Cheese Products [Member]
Total sales	10,258	9,725
ProBugs[Member]
Total sales	6,383	6,775
Frozen Kefir [Member]
Total sales	$ 1,255	$ 1,275