Concentration of Risk (Details)	6 Months Ended
	Jul. 31, 2025
Concentration of Risk [Abstract]
Factors affected price gold	Several factors could affect the price of gold: (i) global gold supply and demand, which is influenced by such factors as forward selling by gold producers, purchases made by gold producers to unwind gold hedge positions, central bank purchases and sales, and production and cost levels in major gold-producing countries; (ii) investors’ expectations with respect to the rate of inflation; (iii) currency exchange rates; (iv) interest rates; (v) investment and trading activities of hedge funds and commodity funds; and (vi) global or regional political, economic or financial events and situations.