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v3.20.1

Other Receivables and Prepayments, Net (Details Textual) - USD ($) | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
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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