XML 90 R32.htm IDEA: XBRL DOCUMENT v3.24.3

COMMON SHARES (Tables)

12 Months Ended

Jun. 30, 2024

Equity [Abstract]

Schedule of stock option

 Schedule of stock option

		Number of Options				Weighted Average Exercise Price				Aggregate Intrinsic Value				Weighted Average Remaining Contractual Life
Balance, June 30, 2023			1,541,500			$	7.19
Granted			1,625,000				2.99
Exercised			(7,800	)			3.95
Cancelled/expired			(663,200	)			5.88
Balance, June 30, 2024			2,495,500			$	4.78			$	-				3.44 years

The following table summarizes the weighted average information and assumptions used to determine option costs:

The following table summarizes the weighted average information and assumptions used to determine option costs: 

		Year ended June 30,
		2024					2023
Fair value per option granted during the period			$1.71				$3.09
Risk-free interest rate			4.25	%			3.30	%
Expected dividend yield			0	%			0	%
Expected stock price volatility (historical basis)			63.2	%			63.6	%
Expected option life in years			5.0				3.0

Weighted average exercise prices related to Canadian dollar denominated warrants were converted to U.S. dollars using end of period foreign currency exchange rates.

Warrant transactions are summarized as follows. Weighted average exercise prices related to Canadian dollar denominated warrants were converted to U.S. dollars using end of period foreign currency exchange rates.

		Warrants				Weighted Average Exercise Price
Balance, June 30, 2022			1,851,622			$	8.99
Granted:
Yorkville financing warrants			1,789,267				8.94
GXII warrants			15,666,626				11.50
Expired			(491,211	)			11.67
Balance, June 30, 2023			18,816,304				10.98
Granted			1,593,817				3.33
Expired			(1,846,560	)			8.67
Balance, June 30, 2024			18,563,561				10.53

At June 30, 2024, the Company has outstanding exercisable warrants, as follows:

At June 30, 2024, the Company has outstanding exercisable warrants, as follows:

Number				Exercise Price				Expiry Date
	855,800				C$9.70			February 19, 2025
	447,318				$8.94			(1)
	250,000				$4.60			September 1, 2025
	413,432				$3.54			December 22, 2025
	315,000				2.20			June 24, 2025
	615,385				$3.25			April 12, 2027
	15,666,626				$11.50			March 17, 2028
	18,563,561

(1) Expires in 3 equal monthly tranches on July 17, 2024, August 17, 2024, and September 17, 2024.

The Company classifies Private Warrants as Level 2 instruments under the fair value hierarchy and estimated the fair value using a Black Scholes model with the following assumptions:

The Company classifies Private Warrants as Level 2 instruments under the fair value hierarchy and estimated the fair value using a Black Scholes model with the following assumptions:

Key Valuation Input		June 30, 2024				June 30, 2023				March 17, 2023
Stock price on valuation date		$	1.73			$	5.03			$	7.00
Strike price		$	11.50			$	11.50			$	11.50
Implied volatility of Public Warrants			69.0	%			33.5	%			19.5	%
Risk free rate			4.45	%			4.18	%			3.47	%
Dividend yield			0	%			0	%			0	%
Expected warrant life in years			3.7				4.7				5.0

The change in the Private Warrants liability is presented below:

The change in the Private Warrants liability is presented below:

		Amount
Initial valuation, March 17, 2023		$	2,987
Change in valuation			292
Valuation at June 30, 2023			3,279
Change in valuation			(1,926	)
Valuation at June 30, 2024		$	1,353

Schedule of expenses as other operating costs

 Schedule of expenses as other operating costs

		Amount
Yorkville Cash Fee		$	1,500
Fair value of Commitment Shares issued			650
Legal and other related costs			496
Costs expensed to other operating expense		$	2,646

X

- Definition

The element represents schedule of changes in the fair value of the private warrants table textblock.

+ References

No definition available.

+ Details

Name:	niobf_ScheduleOfChangesInTheFairValueOfThePrivateWarrantsTableTextBlock
Namespace Prefix:	niobf_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The element represents schedule of outstanding exercisable warrants table text block.

+ References

No definition available.

+ Details

Name:	niobf_ScheduleOfOutstandingExercisableWarrantsTableTextBlock
Namespace Prefix:	niobf_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-SubTopic 10
-Topic 820
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

Name:	us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of each detailed component of other operating costs and expenses that are applicable to sales and revenues, but not included in the cost of sales in the income statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 220
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2

+ Details

Name:	us-gaap_ScheduleOfOtherOperatingCostAndExpenseByComponentTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 718
-SubTopic 10
-Subparagraph (f)(2)
-Name Accounting Standards Codification
-Paragraph 2
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-2

+ Details

Name:	us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the change in stock options.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfStockOptionsRollForwardTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480429/718-10-50-1

+ Details

Name:	us-gaap_ScheduleOfStockholdersEquityNoteWarrantsOrRightsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration