Statements of Income - USD ($)	3 Months Ended		6 Months Ended
	Jul. 31, 2021	Jul. 31, 2020	Jul. 31, 2021	Jul. 31, 2020
REVENUES
Royalty income	$ 27,744,036	$ 7,218,361	$ 37,146,203	$ 9,353,855
Interest	179	24	663	33,293
Total revenues	27,744,215	7,218,385	37,146,866	9,387,148
EXPENSES
Expenses	988,185	542,382	1,816,966	1,099,524
Net income	$ 26,756,030	$ 6,676,003	$ 35,329,900	$ 8,287,624
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)	$ 2.0393	$ 0.5088	$ 2.6928	$ 0.6317
Distribution declared per unit (Note 3) (in dollars per unit)	$ 0.0900	$ 0.0500	$ 0.9800	$ 0.6100