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Restricted Net Assets and Statutory Reserves (Details) | 6 Months Ended
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Sep. 30, 2017
Restricted Net Assets and Statutory Reserves (Textual) |
Statutory reserve percentage | 10.00%

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- References No definition available. + Details
Name: | lyl_RestrictedNetAssetsAndStatutoryReservesTextualAbstract
Namespace Prefix: | lyl_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The percent reperesent statutory reserve percentage. + References No definition available. + Details
Name: | lyl_StatutoryReservePercentage
Namespace Prefix: | lyl_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration