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Retirement Plans (Life Insurance) (Details) - USD ($)	12 Months Ended
	Jan. 31, 2021	Jan. 31, 2020
Retirement Benefits [Abstract]
Death benefits due to participants	$ 2,250,000
Liability beginning of year	1,986,000	$ 2,037,000
Accretion expense	48,000	49,000
Present value of death benefits paid	0	(100,000)
Liability end of year	2,034,000	1,986,000
Cash surrender value	1,895,000	1,906,000
Life Insurance, Death Benefits Payable	$ 3,917,000	$ 3,902,000

X

- Definition

Carrying amount as of the balance sheet date of amounts which could be received based on the terms of the insurance contract upon surrendering life policies owned by the entity.

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- Definition

Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.

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- Definition

Amount of cash outflow to policyholder from benefit payment for expected future policy benefit and expense component of liability for future policy benefit.

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Amount of expense (income) recognized due to changes in the accrued obligation to policyholders that relates to insured events.

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This item represents the amount that could be realized under a life insurance contract or contracts owned by the Entity as of the date of the statement of financial position. Such Entity-owned life insurance policies are commonly known as corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI).

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Life Insurance, Death Benefits Payable

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