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v2.4.1.9

Changes Carrying Amount of Goodwill (Detail) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2014 | Jan. 31, 2013 | Dec. 31, 2014 | Mar. 31, 2014
Goodwill [Line Items] |  |  |  |
Goodwill - beginning of year | $ 33,200 us-gaap_Goodwill | $ 32,000 us-gaap_Goodwill | $ 1,386,480 us-gaap_Goodwill | $ 494,700 us-gaap_Goodwill
Acquisitions | 461,500 us-gaap_GoodwillAcquiredDuringPeriod | 1,200 us-gaap_GoodwillAcquiredDuringPeriod |  |
Goodwill - end of year | $ 494,700 us-gaap_Goodwill | $ 33,200 us-gaap_Goodwill | $ 1,386,480 us-gaap_Goodwill | $ 494,700 us-gaap_Goodwill

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_GoodwillLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration