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Business Combinations - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Apr. 30, 2016 | Jan. 30, 2016 | Oct. 31, 2015 | Aug. 01, 2015 | May 02, 2015 | Jan. 31, 2015 | Nov. 01, 2014 | Aug. 02, 2014 | Apr. 30, 2016 | May 02, 2015 | Apr. 26, 2014 | Mar. 15, 2016 | Aug. 11, 2014 | May 08, 2013
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill acquired |  |  |  |  |  |  |  |  | $ 2,715 |  |  |  |  |
Net sales | $ 138,463 | $ 123,816 | $ 157,668 | $ 150,221 | $ 158,086 | $ 118,123 | $ 173,115 | $ 166,618 | 570,168 | $ 615,942 | $ 551,970 |  |  |
General and administrative |  |  |  |  |  |  |  |  | 32,801 | 30,679 | 27,984 |  |  |
International |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill acquired |  |  |  |  |  |  |  |  | 213 |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 94,472 | 102,282 | 85,578 |  |  |
Commerical |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Goodwill acquired |  |  |  |  |  |  |  |  | 2,502 |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 148,261 | $ 165,793 | $ 154,754 |  |  |
OPEN |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage acquired |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Goodwill acquired |  | 1,249 |  |  |  |  |  |  |  |  |  |  |  |
Property and equipment acquired |  |  |  |  |  | 2,658 |  |  |  |  |  |  |  |
Inventory acquired |  |  |  |  |  | 2,038 |  |  |  |  |  |  |  |
Other current assets acquired |  |  |  |  |  | 833 |  |  |  |  |  |  |  |
Liabilities acquired |  |  |  |  |  | 1,230 |  |  |  |  |  |  |  |
Long-term debt acquired |  |  |  |  |  | $ 4,155 |  |  |  |  |  |  |  |
Deferred payments |  | $ 2,375 |  |  |  |  |  |  |  |  |  |  |  |
Deferred payments period |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |
OPEN | International |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales |  |  |  |  |  |  |  |  | 4,218 |  |  |  |  |
General and administrative |  |  |  |  |  |  |  |  | 44 |  |  |  |  |
OPEN | Trade Names |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangible assets acquired |  | $ 1,160 |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets useful life |  | 20 years |  |  |  |  |  |  |  |  |  |  |  |
OPEN | Customer Lists |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangible assets acquired |  | $ 582 |  |  |  |  |  |  |  |  |  |  |  |
Acquired intangible assets useful life |  | 9 years |  |  |  |  |  |  |  |  |  |  |  |
Data Display [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage acquired |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% |
Property and equipment acquired | 1,433 |  |  |  |  |  |  |  | 1,433 |  |  |  | $ 1,433 |
Inventory acquired | 2,624 |  |  |  |  |  |  |  | 2,624 |  |  |  | 2,773 |
Receivables acquired | 3,063 |  |  |  |  |  |  |  | 3,063 |  |  |  | 3,380 |
Other current assets acquired | 1,892 |  |  |  |  |  |  |  | 1,892 |  |  |  | 1,869 |
Liabilities acquired | 3,695 |  |  |  |  |  |  |  | 3,695 |  |  |  | 3,616 |
Long term debt obligations | 950 |  |  |  |  |  |  |  | $ 950 |  |  |  | $ 950 |
ADFLOW Networks [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage acquired |  |  |  |  |  |  |  |  |  |  |  | 100.00% |  |
Goodwill acquired | 2,502 |  |  |  |  |  |  |  |  |  |  |  |  |
Property and equipment acquired |  |  |  |  |  |  |  |  |  |  |  | $ 58 |  |
Inventory acquired |  |  |  |  |  |  |  |  |  |  |  | 230 |  |
Receivables acquired |  |  |  |  |  |  |  |  |  |  |  | 1,283 |  |
Other current assets acquired |  |  |  |  |  |  |  |  |  |  |  | 513 |  |
Liabilities acquired |  |  |  |  |  |  |  |  |  |  |  | 935 |  |
Long term debt obligations |  |  |  |  |  |  |  |  |  |  |  | $ 1,545 |  |
Deferred payments | $ 1,833 |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred payments period | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |
ADFLOW Networks [Member] | Commerical |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | $ 542 |  |  |  |  |  |  |  |  |  |  |  |  |
General and administrative | 295 |  |  |  |  |  |  |  |  |  |  |  |  |
ADFLOW Networks [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangible assets acquired | 2,692 |  |  |  |  |  |  |  |  |  |  |  |  |
ADFLOW Networks [Member] | Computer Software, Intangible Asset [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finite-lived intangible assets acquired | $ 3,176 |  |  |  |  |  |  |  |  |  |  |  |  |

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