Condensed Statements of Operations - USD ($)		3 Months Ended		9 Months Ended
	Oct. 11, 2018	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2018	Oct. 31, 2017
REVENUES
Royalty income		$ 13,891,273	$ 10,898,615	$ 39,663,012	$ 29,889,218
Interest		82,570	26,384	146,830	40,199
Total revenues		13,973,843	10,924,999	39,809,842	29,929,417
EXPENSES
Expenses		388,781	227,330	1,037,477	762,869
Net income		$ 13,585,062	$ 10,697,669	$ 38,772,365	$ 29,166,548
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)		$ 1.0354	$ 0.8154	$ 2.9552	$ 2.2231
Distributions declared per unit (Note 3) (in dollars per unit)	$ 0.94	$ 0.9400	$ 0.6400	$ 1.6100	$ 1.3500