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1. Summary of Significant Accounting Policies (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Advertising expense	$ 185	$ 118
Outside the U.S. [Member]
Tangible assets	$ 6,426

X

- Definition

Tangible assets

+ References

No definition available.

+ Details

Name:	LTRX_TangibleAssets
Namespace Prefix:	LTRX_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

+ Details

Name:	us-gaap_AdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Details

Name:	us-gaap_GeographicDistributionAxis=LTRX_OutsideUSMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: