Statements of Income - USD ($)	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
REVENUES
Royalty income	$ 2,135,494	$ 5,361,790
Interest	33,269	105,083
Total revenues	2,168,763	5,466,873
EXPENSES
Expenses	557,142	556,585
Net income	$ 1,611,621	$ 4,910,288
WEIGHTED AVERAGE NUMBER OF UNITS OUTSTANDING	13,120,010	13,120,010
Net income per unit (Note 2) (in dollars per unit)	$ 0.1228	$ 0.3743
Distribution declared per unit (Note 3) (in dollars per unit)	$ 0.5600	$ 0.8900