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Warrants (Details) - Schedule of reconciliation of the beginning and ending balances of warrants liability - Fair Value, Inputs, Level 3 [Member] - USD ($) | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Warrants (Details) - Schedule of reconciliation of the beginning and ending balances of warrants liability [Line Items] |  |  |
Beginning balance | $ 389,630 | $ 1,129,246 | $ 1,729,111
Warrants issued to Hangzhou Lianluo |  |  |
Warrants redeemed |  |  |
Fair value change of the issued warrants included in earnings | 129,036 | (739,616) | (599,865)
Ending balance | $ 518,666 | $ 389,630 | $ 1,129,246

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- Definition It represents the fair value of issued warrants. + References No definition available. + Details
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Namespace Prefix: | llit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Fair value of warrants redeemed + References No definition available. + Details
Name: | llit_WarrantRedemmedAtParValue
Namespace Prefix: | llit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Fair Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + References No definition available. + Details
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Namespace Prefix: | llit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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Namespace Prefix: | llit_
Data Type: | xbrli:stringItemType
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- Definition Fair value of warrants issued. + References No definition available. + Details
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Namespace Prefix: | llit_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Details
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Balance Type: |
Period Type: |