Schedules of Investment (Details)		Jan. 31, 2020 USD ($) Ounces	Jan. 31, 2019 USD ($) Ounces
Gold Bullion [Member]
Fine Ounces | Ounces		125,287	116,515
Cost		$ 159,340,051	$ 145,342,210
Value		$ 198,479,752	$ 154,177,919
% of Net Assets		100.00%	100.00%
Total Investments [Member]
Cost		$ 159,340,051	$ 145,342,210
Value		$ 198,479,752	$ 154,177,919
% of Net Assets		100.00%	100.00%
Liabilities in excess of other assets [Member]
Value		$ (9)	$ (2)
% of Net Assets	[1]	(0.00%)	0.00%
Net Assets [Member]
Value		$ 198,479,743	$ 154,177,917
% of Net Assets		100.00%	100.00%

[1] Amount is less than 0.005%