Segmented Information - Summary of Segments (Details) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Jun. 30, 2025
Segment Reporting Information [Line Items]
Exploration and development	$ 566,096	$ 395,298
Reclamation	37,880	53,937
Land holding costs	188,608	166,565
Accretion	56,912	88,555	$ 225,413
Corporate	675,026	700,320
Net Loss Before Other Expense	1,524,522	1,404,675
Other Expense (Income)
Other income		(6,217)
Loss from change in fair value of derivative liability on royalty convertible debenture	1,151,874	(236,089)
Loss from change in fair value of warrant liability	1,227,664
Interest expense	426,839	426,840
Interest income	(6,561)	(17,071)
Net Loss	4,324,338	1,572,138
Sleeper Gold Project and other Nevada based Projects
Segment Reporting Information [Line Items]
Exploration and development	34,957	58,229
Reclamation	37,880	53,937
Land holding costs	145,435	126,588
Accretion	56,912	88,555
Corporate	0	0
Net Loss Before Other Expense	275,184	327,309
Other Expense (Income)
Other income		(6,217)
Loss from change in fair value of derivative liability on royalty convertible debenture	0	0
Loss from change in fair value of warrant liability	0
Interest expense	0	0
Interest income	0	0
Net Loss	275,184	321,092
Grassy Mountain Project and other Oregon based Projects
Segment Reporting Information [Line Items]
Exploration and development	531,139	337,069
Reclamation	0	0
Land holding costs	43,173	39,977
Accretion	0	0
Corporate	0	0
Net Loss Before Other Expense	574,312	377,046
Other Expense (Income)
Other income		0
Loss from change in fair value of derivative liability on royalty convertible debenture	0	0
Loss from change in fair value of warrant liability	0
Interest expense	0	0
Interest income	0	0
Net Loss	574,312	377,046
Corporate
Segment Reporting Information [Line Items]
Exploration and development	0	0
Reclamation	0	0
Land holding costs	0	0
Accretion	0	0
Corporate	675,026	700,320
Net Loss Before Other Expense	675,026	700,320
Other Expense (Income)
Other income
Loss from change in fair value of derivative liability on royalty convertible debenture	1,151,874	(236,089)
Loss from change in fair value of warrant liability	1,227,664
Interest expense	426,839	426,840
Interest income	(6,561)	(17,071)
Net Loss	$ 3,474,842	$ 874,000

Paramount Gold Nevada Corp. 10-Q