XML 60 R43.htm IDEA: XBRL DOCUMENT v3.24.3

Schedule of warrant transactions (Details)	3 Months Ended
	Sep. 30, 2024 $ / shares shares
Equity [Abstract]
Beginning balance	18,563,561
Beginning balance | $ / shares	$ 10.53
Granted	2,816,742
Granted | $ / shares	$ 2.31
Exercised
Exercised
Expired	(447,318)
Expired | $ / shares	$ 8.94
Ending balance	20,932,985
Ending balance | $ / shares	$ 9.46

X

- Definition

The element represents class of warrant or right exercise price exercised.

+ References

No definition available.

+ Details

Name:	niobf_ClassOfWarrantOrRightExercisePriceExercised
Namespace Prefix:	niobf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The element represents class of warrant or right exercise price expired.

+ References

No definition available.

+ Details

Name:	niobf_ClassOfWarrantOrRightExercisePriceExpired
Namespace Prefix:	niobf_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The element represents class of warrant or right exercise price granted.

+ References

No definition available.

+ Details

Name:	niobf_ClassOfWarrantOrRightExercisePriceGranted
Namespace Prefix:	niobf_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The element represents class of warrant or right exercised.

+ References

No definition available.

+ Details

Name:	niobf_ClassOfWarrantOrRightExercised
Namespace Prefix:	niobf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The element represents class of warrant or right expired.

+ References

No definition available.

+ Details

Name:	niobf_ClassOfWarrantOrRightExpired
Namespace Prefix:	niobf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The element represents class of warrant or right granted.

+ References

No definition available.

+ Details

Name:	niobf_ClassOfWarrantOrRightGranted
Namespace Prefix:	niobf_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	us-gaap_EquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration