XML 45 R34.htm IDEA: XBRL DOCUMENT v3.20.2

Property and Equipment (Details Narrative) - USD ($)	3 Months Ended
	Aug. 31, 2020	Aug. 31, 2019
Property and Equipment (Textual)
Depreciation expense	$ 2,564	$ 2,770

X

- References

No definition available.

+ Details

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

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

+ Details

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Balance Type:	debit
Period Type:	duration