Retirement Plans (Life Insurance) (Details) - USD ($)	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023
Retirement Benefits [Abstract]
Death benefits due to participants	$ 1,600,000
Liability beginning of year	1,643,000	$ 1,616,000
Accretion expense	25,000	27,000
Present value of death benefits paid	(200,000)	0
Liability end of year	1,468,000	1,643,000
Cash surrender value	1,100,000	1,500,000
Life Insurance, Death Benefits Payable	$ 2,800,000	$ 3,000,000