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v3.7.0.1

Debt Capital leases (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Jan. 31, 2017 | Jan. 31, 2016
Debt Instrument [Line Items] |  |
Capitalized lease obligations | $ 283,000 | $ 442,000
Piping [Member] |  |
Debt Instrument [Line Items] |  |
Debt Instrument, Issuance Date | May 01, 2012 |
Debt Instrument, Face Amount | $ 400,000 |
Debt Instrument, Interest Rate at Period End | 6.50% |
Debt Instrument, Periodic Payment | $ 8,000 |
Debt Instrument, Maturity Date | Jun. 01, 2017 |
Indian capital leases [Member] |  |
Debt Instrument [Line Items] |  |
Capitalized lease obligations | $ 8,000 |
Debt instrument, interest rate, stated percentage range, minimum | 15.60% |
Debt Instrument, Issuance Date | Aug. 05, 2016 |
Face value of debt in local currency | 0.6 million Indian Rupees |
Debt Instrument, Periodic Payment | $ 270 |
Debt Instrument, Maturity Date | Jul. 05, 2019 |
Capital Lease Obligations [Member] |  |
Debt Instrument [Line Items] |  |
Capitalized lease obligations | $ 41,000 |
Debt Instrument, Issuance Date | Feb. 01, 2013 |
Debt Instrument, Interest Rate at Period End | 4.00% |
Debt Instrument, Periodic Payment | $ 1,000 |
Debt Instrument, Maturity Date | Nov. 30, 2017 |
Leases, Acquired-in-Place [Member] |  |
Debt Instrument [Line Items] |  |
Capitalized lease obligations | $ 728,000 |
Debt Instrument, Issuance Date | Mar. 12, 2013 |
Debt Instrument, Interest Rate at Period End | 4.00% |
Debt Instrument, Periodic Payment | $ 12,000 |
Debt Instrument, Maturity Date | Mar. 11, 2017 |
Capital Addition Purchase Commitments [Member] |  |
Debt Instrument [Line Items] |  |
Capitalized lease obligations | $ 942,000 |
Debt Instrument, Issuance Date | Jun. 26, 2014 |
Debt Instrument, Interest Rate at Period End | 3.25% |
Debt Instrument, Periodic Payment | $ 14,000 |
Debt Instrument, Maturity Date | Jun. 25, 2018 |
Vehicles [Member] |  |
Debt Instrument [Line Items] |  |
Capitalized lease obligations | $ 52,000 |
Debt Instrument, Issuance Date | Jul. 01, 2014 |
Debt Instrument, Interest Rate at Period End | 3.25% |
Debt Instrument, Periodic Payment | $ 1,000 |
Debt Instrument, Maturity Date | Jun. 30, 2018 |

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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 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 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)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: 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=64930785&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + 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(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Date the debt instrument was issued, in CCYY-MM-DD format. + 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(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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 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 + Details
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