Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	3 Months Ended	12 Months Ended
	Apr. 30, 2023	Jan. 31, 2023
Statement of Financial Position [Abstract]
Common stock, no par value
Common stock, shares authorized, unlimited	Unlimited	Unlimited
Common stock, shares issued	9,161,589	9,161,589
Common stock, shares outstanding	9,010,909	9,010,909
Treasury stock, shares	59,681	150,680