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Note 9 - Retirement Plans - Benefit Obligations, Plan Assets and Funded Status of Plan (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2020 | Jan. 31, 2019
Accumulated benefit obligations |  |
Accumulated benefits | $ 6,959 | $ 6,258
Benefit obligation - beginning of year | 6,258 | 6,658
Interest cost | 237 | 240
Actuarial (gain)/loss | 788 | (303)
Benefits paid | (324) | (337)
Benefit obligation - end of year | 6,959 | 6,258
Fair value of plan assets - beginning of year | 6,179 | 6,700
Actual (loss)/gain on plan assets | 695 | (184)
Benefits paid | 324 | 337
Fair value of plan assets - end of year | 6,550 | 6,179
Unfunded status | (409) | (80)
Balance sheet classification |  |
Prepaid expenses and other current assets | 325 | 343
Other assets | 1,679 | 1,568
Deferred compensation liabilities | (2,413) | (1,991)
Net amount recognized | (409) | (80)
Amounts recognized in accumulated other comprehensive loss |  |
Unrecognized actuarial loss | 2,087 | 1,648
Net amount recognized | $ 2,087 | $ 1,648

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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