Condensed Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Revenues
Royalty income	$ 5,416,904	$ 6,254,719	$ 9,766,376	$ 12,265,326
Interest	189,851	235,190	574,921	475,154
Total revenues	5,606,755	6,489,909	10,341,297	12,740,480
Expenses
Expenses	862,873	1,092,015	1,966,206	3,858,802
Net income	$ 4,743,882	$ 5,397,894	$ 8,375,091	$ 8,881,678
Weighted Average Number of units outstanding	13,120,010	13,120,010	13,120,010	13,120,010
Net income per unit (Note 2) (in dollars per unit)	$ 0.3616	$ 0.4114	$ 0.6383	$ 0.677
Distributions declared per unit (Note 4) (in dollars per share)	$ 0.12	$ 0.3	$ 0.68	$ 0.59