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Note 8 - Retirement Plans - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Interest cost	$ 141	$ 173
Expected return on plan assets	0	(514)
Recognized actuarial loss	49	119
Net periodic benefit expense/(income)	190	(222)
Actuarial gain/(loss) on obligation	220	511
Settlement/plan termination	1,518	0
Actual gain/(loss) on plan assets	(540)	(90)
Amounts recognized in current year	49	119
Total in other comprehensive income	$ (1,247)	$ (540)

X

- Definition

The amount of monetary impact of settlement and plan termination costs in a defined benefit plan on accumulated other comprehensive income (loss).

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Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of accumulated other comprehensive income (loss) for transition asset (obligation) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount of gain (loss), recognized immediately as component of net periodic benefit (cost) credit, for change in value of benefit obligation or plan assets from experience different from that assumed, change in actuarial assumption, or consequence of temporarily deviating from substantive plan. Includes, but is not limited to, amount in excess of 10 percent of greater of fair value of plan assets or benefit obligation.

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Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan.

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