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Other Receivables and Prepayments, Net (Details Textual) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Receivables and Prepayments, Net (Textual)
Bad debts	$ 499	$ 16,403	$ 32,213

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- Definition

Bad debts on other receivables.

+ References

No definition available.

+ Details

Name:	llit_BadDebtsOnOtherReceivables
Namespace Prefix:	llit_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

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- References

No definition available.

+ Details

Name:	llit_OtherReceivablesAndPrepaymentsNetTextualAbstract
Namespace Prefix:	llit_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration