Debt Capital leases (Details) (USD $)	12 Months Ended
Jan. 31, 2013	Jan. 31, 2012
Debt Instrument [Line Items]
Capital Lease Obligations	$ 2,584,000	$ 1,831,000
Debt Instrument, Issuance Date	Jan. 18, 2008
Debt Instrument, Interest Rate at Period End	6.26%
Debt Instrument, Periodic Payment	23,000
Debt Instrument, Maturity Date	Nov. 30, 2013
Equipment loan [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	1,200,000
Debt Instrument, Issuance Date	Jan. 31, 2012
Debt Instrument, Interest Rate at Period End	6.70%
Debt Instrument, Periodic Payment	24,000
Debt Instrument, Maturity Date	Jan. 31, 2017
2.180 DKK loan [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	387,000
Debt Instrument, Issuance Date	Jul. 01, 2011
Face value of debt in local currency	2,180,827 DKK
Debt Instrument, Interest Rate at Period End	6.37%
Debt Instrument, Periodic Payment	6,000
Debt Instrument, Maturity Date	Jun. 30, 2016
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	273,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	3.80%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum	5.80%
Debt Instrument, Periodic Payment	0
Debt Instrument, Maturity Date Range, Start	Oct. 31, 2013
Debt Instrument, Maturity Date Range, End	May 31, 2014
423K Dirhams loan [Member]
Debt Instrument [Line Items]
Debt Instrument, Issuance Date	Nov. 25, 2012
Face value of debt in local currency	423 thousand Dirhams
Debt Instrument, Interest Rate at Period End	3.39%
Debt Instrument, Periodic Payment	5,000
Indian capital leases [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	57,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	14.40%
Debt Instrument, Interest Rate, Effective Percentage Rate Range, Maximum	17.80%
Face value of debt in local currency	3,129,000 Indian Rupees
Debt Instrument, Periodic Payment	2,500
952 DDK Loan [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	170,000
Debt Instrument, Issuance Date	Apr. 23, 2010
Face value of debt in local currency	952,600 DKK
Debt Instrument, Interest Rate at Period End	5.00%
Debt Instrument, Periodic Payment	$ 2,500
Debt Instrument, Maturity Date	Apr. 30, 2015

Face value of debt in local currency

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 16

-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 840

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

+ Details

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- Definition

The effective interest rate at the end of the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

When presenting a range of interest rates, the highest effective rate for funds borrowed under the debt agreement as of the balance sheet date.

+ References

+ Details

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- Definition

When presenting a range of interest rates, the lowest stated (contractual) rate for funds borrowed under the debt agreement as of the balance sheet date.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Date the debt instrument was issued, in CCYY-MM-DD format.

+ References

+ Details

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- Details

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

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- Definition

Latest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

+ References

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- Definition

Earliest date the outstanding debt instruments are required to be repaid, in CCYY-MM-DD format.

+ References

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 50

-Paragraph 3

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

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