Condensed Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Revenues
Royalty income	$ 6,254,719	$ 9,730,596	$ 12,265,326	$ 11,441,912
Interest	235,190	158,645	475,154	296,178
Total revenues	6,489,909	9,889,241	12,740,480	11,738,090
Expenses
Expenses	1,092,015	705,901	3,858,802	1,531,611
Net income	$ 5,397,894	$ 9,183,340	$ 8,881,678	$ 10,206,479
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)	$ 0.4114	$ 0.6999	$ 0.6770	$ 0.7779
Distributions declared per unit (Note 4) (in dollars per share)	$ 0.3000	$ 0.00	$ 0.5900	$ 0.0000