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Retirement plans Defined pension disclosure (Tables) | 12 Months Ended
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Jan. 31, 2014
Defined Benefit Plan Disclosure [Line Items] |
Schedule of Defined Benefit Plans Disclosures [Table Text Block] |
Reconciliation of benefit obligations, plan assets and funded status of plan | 2013 |  | 2012 |
Accumulated benefit obligations |  |
Vested benefits | $6,243 | $6,650
Accumulated benefits | $6,827 | $7,240
Change in benefit obligation |  |
Benefit obligation - beginning of year | $7,240 | $7,186
Service cost | 78 |  | 171 |
Interest cost | 293 |  | 299 |
Actuarial (gain) loss | (539 | ) | (113 | )
Benefits paid | (245 | ) | (303 | )
Benefit obligation - end of year | $6,827 | $7,240
Change in plan assets |  |
Fair value of plan assets - beginning of year | $6,065 | $5,502
Actual gain on plan assets | 531 |  | 574 |
Company contributions | 0 |  | 292 |
Benefits paid | (245 | ) | (303 | )
Fair value of plan assets - end of year | $6,351 | $6,065
Unfunded status | $(476) | $(1,175)
Balance sheet classification |  |
Prepaid expenses and other current assets | $335 | $328
Other assets | 1,038 |  | 1,304 |
Other long-term liabilities | (1,849 | ) | (2,807 | )
Net amount recognized | $(476) | $(1,175)
Amounts recognized in accumulated other comprehensive income |  |
Unrecognized actuarial loss | $1,513 | $2,206
Unamortized prior service cost | 0 |  | 273 |
Net amount recognized | $1,513 | $2,479

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2417-114920 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=32704760&loc=d3e4179-114921 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2439-114920 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2410-114920 + Details
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