Retirement Plans (Periodic Pension Cost) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2012
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Defined Benefit Plan, Amortization of Gains (Losses)	$ (1,548)
Total recognized in other Comprehensive Income	(2,006)	658	5,586
Components of Net Cost
Expected return on plan assets	(391)
Employee Plan [Member]
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net loss (gain)	(407)	2,895
Prior service cost	0	0
Defined Benefit Plan, Amortization of Gains (Losses)	(2,264)	(2,184)
Amortization of prior service cost (credit)	0	0
Amortization of initial asset	0	0
Total recognized in other Comprehensive Income	(2,671)	711
Items not yet Recognized as a Component of Net Periodic Pension Expense, Included in AOCI
Prior service cost	0	0
Net actuarial loss (gain)	1,136	1,397
Net periodic pension cost	1,136	1,397
Projected benefit obligation	32,069	32,840	29,583
Accumulated benefit obligation	32,069	32,840
Fair value of plan assets	18,168	16,875	14,808
Components of Net Cost
Service cost	0	0
Interest cost	1,312	1,299
Expected return on plan assets	1,119	979
Amortization of transition amount	0	0
Recognized (gain) loss due to curtailments	0	0
Amortization of prior service cost	0	0
Recognized net actuarial loss	2,264	2,184
Benefit cost	2,457	2,504
Estimated Future Benefit Payments
FYE 01-31-2015	4,862
FYE 01-31-2016	1,963
FYE 01-31-2017	2,456
FYE 01-31-2018	1,475
FYE 01-31-2019	1,879
FYE 01-31-2020 to 2024	8,635
Total	21,270
Weighted Average Assumptions to Determine Benefit Obligations at Year-End
Discount rate	4.25%	4.00%
Weighted Average Assumptions to Determine Net Periodic Pension Cost
Discount rate	4.00%	4.50%
Expected return on plan assets	6.50%	6.50%
VIP Retirement Plan [Member]
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net loss (gain)	(176)	175
Prior service cost		0
Defined Benefit Plan, Amortization of Gains (Losses)	(222)	(205)
Amortization of prior service cost (credit)	0	0
Amortization of initial asset	0	0
Total recognized in other Comprehensive Income	(398)	(30)
Items not yet Recognized as a Component of Net Periodic Pension Expense, Included in AOCI
Prior service cost	0	0
Net actuarial loss (gain)	178	222
Net periodic pension cost	178	222
Projected benefit obligation	7,662	8,054	8,079
Accumulated benefit obligation	7,662	8,054
Fair value of plan assets	0	0	0
Components of Net Cost
Service cost	0	0
Interest cost	330	352
Expected return on plan assets	0	0
Amortization of transition amount	0	0
Recognized (gain) loss due to curtailments	0	0
Amortization of prior service cost	0	0
Recognized net actuarial loss	222	205
Benefit cost	552	557
Estimated Future Benefit Payments
FYE 01-31-2015	584
FYE 01-31-2016	345
FYE 01-31-2017	329
FYE 01-31-2018	313
FYE 01-31-2019	336
FYE 01-31-2020 to 2024	1,796
Total	3,703
Weighted Average Assumptions to Determine Benefit Obligations at Year-End
Discount rate	4.75%	4.25%
Weighted Average Assumptions to Determine Net Periodic Pension Cost
Discount rate	4.25%	4.50%
Directors Plan [Member]
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net loss (gain)	(29)	(23)
Prior service cost	0	0
Defined Benefit Plan, Amortization of Gains (Losses)	14	0
Amortization of prior service cost (credit)	0	0
Amortization of initial asset	0	0
Total recognized in other Comprehensive Income	(15)	(23)
Items not yet Recognized as a Component of Net Periodic Pension Expense, Included in AOCI
Prior service cost	0	0
Net actuarial loss (gain)	(31)	(14)
Net periodic pension cost	(31)	(14)
Projected benefit obligation	439	468	480
Accumulated benefit obligation	439	468
Fair value of plan assets	0	0	0
Components of Net Cost
Service cost	0	0
Interest cost	18	20
Expected return on plan assets	0	0
Amortization of transition amount	0	0
Recognized (gain) loss due to curtailments	0	0
Recognized net actuarial loss	(14)	0
Benefit cost	4	20
Estimated Future Benefit Payments
FYE 01-31-2015	66
FYE 01-31-2016	60
FYE 01-31-2017	55
FYE 01-31-2018	49
FYE 01-31-2019	44
FYE 01-31-2020 to 2024	148
Total	$ 422
Weighted Average Assumptions to Determine Benefit Obligations at Year-End
Discount rate	4.25%	4.00%
Weighted Average Assumptions to Determine Net Periodic Pension Cost
Discount rate	4.00%	4.50%