ROYALTY AGREEMENT, UNALLOCATED RESERVE AND DISTRIBUTIONS (Details) - USD ($)		3 Months Ended		6 Months Ended
	Jul. 12, 2024	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023	Jan. 31, 2024
Unallocated Cash and Securities portion of Unallocated Reserve
Cash and cash equivalents		$ 21,631,129		$ 21,631,129		$ 23,980,448
Distribution payable		(3,936,003)		(3,936,003)		(4,854,404)
Unallocated cash and cash equivalents		17,695,126		17,695,126		$ 19,126,044
Reconciliation of Trust's Unallocated Reserve
Beginning Balance		20,654,128	$ 12,461,356	20,975,146	$ 11,438,217
Net income		5,397,894	9,183,340	8,881,678	10,206,479
Distributions declared		(3,936,004)		(7,740,806)
Ending Balance		$ 22,116,018	$ 21,644,696	$ 22,116,018	$ 21,644,696
Distribution declared (in dollars per share)		$ 0.3000	$ 0.00	$ 0.5900	$ 0.0000
Distributions declared per unit (in dollars per unit)	$ 0.30			$ 0
Unallocated Reserve member
Reconciliation of Trust's Unallocated Reserve
Beginning Balance		$ 20,654,125	$ 12,461,353	$ 20,975,143	$ 11,438,214
Net income		5,397,894	9,183,340	8,881,678	10,206,479
Distributions declared		(3,936,004)		(7,740,806)
Ending Balance		22,116,015	21,644,693	22,116,015	21,644,693
Trust Corpus
Reconciliation of Trust's Unallocated Reserve
Beginning Balance		3	3	3	3
Ending Balance		$ 3	$ 3	$ 3	$ 3