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PURCHASED INTANGIBLE ASSETS - Intangible Assets Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Jan. 31, 2016 | Jan. 31, 2015 | Jan. 31, 2014
Activity related to intangible assets, excluding goodwill |  |  |
Intangible assets, beginning of the year | $ 3,824 | $ 3,824 |
Intangible assets, end of the year | 11,854 | 3,824 | $ 3,824
Accumulated amortization, beginning of year | 1,979 | 1,736 |
Amortization of intangibles | 531 | 243 | 243
Accumulated amortization, end of year | 2,510 | 1,979 | $ 1,736
Intangible assets, net | 9,344 | $ 1,845 |
APC |  |  |
Activity related to intangible assets, excluding goodwill |  |  |
Addition | 543 |  |
Roberts |  |  |
Activity related to intangible assets, excluding goodwill |  |  |
Addition | $ 7,487 |  |

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- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with a finite life and an indefinite life, resulting from a business combination. + References No definition available. + Details
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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 2: 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 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph ((a)(1),(b)) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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