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Subsequent Event (Details) - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 28, 2018 | Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Subsequent Event [Line Items] |  |  |  |
Business acquisition, cash paid |  | $ 0 | $ 0 | $ 10,000
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Business acquisition, cash paid | $ 3,000 |  |  |
Agreement to forego, accounts receivable balances | $ 1,200 |  |  |
Preferred Stock | Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Preferred stock shares issued, acquisitions (in shares) | 152,290 |  |  |
Preferred stock issued, value | $ 3,500 |  |  |
Preferred stock, shares issued (in shares) | 21,756 |  |  |
Preferred stock issued, value, contingent consideration | $ 500 |  |  |

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- Definition Amount of asset recognized arising from contingent consideration in a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 35 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6911338&loc=d3e6819-128478 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 25 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6411-128476 + Details
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585 + Details
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