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Inventory (Details Textual)	3 Months Ended	9 Months Ended
	Feb. 28, 2018 USD ($)	Feb. 28, 2018 USD ($)
Inventory (Textual)
Inventory held at third party locations	$ 51,845	$ 51,845
Inventory held management abandoned		11,496
Inventory held included cost of sales	$ 11,496	$ 11,496

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- References

No definition available.

+ Details

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Namespace Prefix:	reviv_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

It represent of inventory held is included in cost of sales.

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No definition available.

+ Details

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Namespace Prefix:	reviv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Definition

It represent amount of inventory held at a former distributor at a foreign location.

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No definition available.

+ Details

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Namespace Prefix:	reviv_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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- Definition

Represents mortgage loans held in inventory primarily for sale to others (third parties, businesses, legal entities) in the ordinary course of business.

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No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant