Note 19 - Other Charges (Details) - Changes in Restructuring Provision - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Fiscal 2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance	$ 446
Balance	141	$ 446
Accruals and adjustments	50	715
Cash draw downs	(355)	(269)
Fiscal 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance	25	148
Balance		25	$ 148
Accruals and adjustments	33	100	1,904
Cash draw downs	(57)	(215)
Foreign exchange	(1)	(8)
Workforce Reduction [Member] \| Fiscal 2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance	226
Balance		226
Accruals and adjustments	24	464
Cash draw downs	(250)	(238)
Workforce Reduction [Member] \| Fiscal 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance		52
Balance			52
Accruals and adjustments		64
Cash draw downs		(116)
Facility Closing [Member] \| Fiscal 2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance	220
Balance	141	220
Accruals and adjustments	14	224
Cash draw downs	(93)	(4)
Facility Closing [Member] \| Fiscal 2014 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Balance	25	96
Balance		25	$ 96
Accruals and adjustments	33	36
Cash draw downs	(57)	(99)
Foreign exchange	(1)	(8)
Other Restructuring [Member] \| Fiscal 2015 Restructuring Plan [Member]
Restructuring Cost and Reserve [Line Items]
Accruals and adjustments	12	27
Cash draw downs	$ (12)	$ (27)

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 5.P.3)
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140864-122747

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

+ Details

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

+ References

+ Details

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- Definition

Amount of gain (loss) from translating a restructuring reserve to the currency of the reporting entity from an amount denominated or measured in a different currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB TOPIC 5.P.4(b)(2))
-URI http://asc.fasb.org/extlink&oid=27011515&loc=d3e140904-122747

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section P
-Subsection 3, 4

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