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12. Segments, Products and Customers (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Total sales		$ 31,733	$ 31,131	$ 63,850	$ 63,701
Drinkable Kefir [Member]
Total sales	[1]	27,488	26,535	55,248	54,602
Lifeway Cheese Products [Member]
Total sales		2,591	2,462	5,189	5,099
ProBugs Kefer products [Member]
Total sales		1,315	1,716	2,767	3,357
Frozen Kefir [Member]
Total sales		$ 339	$ 418	$ 646	$ 643
[1] Excludes ProBugs Kefir products, and includes cream, cupped Kefir and cupped cheese products, supplements and other.

X

- Definition

Aggregate revenue during the period from the sale of goods in the normal course of business, after deducting returns, allowances and discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1(a))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

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Namespace Prefix:
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X

- Details

Name:	us-gaap_ProductOrServiceAxis=lway_LifewayFarmerCheeseMember
Namespace Prefix:
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Period Type:

X

- Details

Name:	us-gaap_ProductOrServiceAxis=lway_ProBugsMember
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X

- Details

Name:	us-gaap_ProductOrServiceAxis=lway_FrozenKefirMember
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