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SUBSEQUENT EVENTS (Details)	Apr. 25, 2024 shares
Subsequent Event
Subsequent Event [Line Items]
Maximum number of common stock shares to be converted into Series A Preferred Stock	125,000

X

- Definition

Maximum number of shares to be converted in a noncash (or part noncash) transaction.

+ References

No definition available.

+ Details

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Namespace Prefix:	hnvr_
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Balance Type:	na
Period Type:	duration

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

+ Details

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Balance Type:	na
Period Type:	duration

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- Details

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