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Intangible Assets - Fair Value of Acquired Identifiable Intangible Assets and Related Estimated Useful Lives (Detail) - USD ($) $ in Thousands | Jul. 28, 2018 | Jan. 31, 2018
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Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | $ 37,387 | $ 36,987
Accumulated Amortization | (5,843) | (3,797)
Currency Translation Adjustment | 244 | 443
Net Carrying Amount | 31,788 | 33,633
Customer Contract Relationships [Member] | Honeywell Asset Purchase and License Agreement [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 27,243 | 26,843
Accumulated Amortization | (2,397) | (958)
Net Carrying Amount | 24,846 | 25,885
Customer Contract Relationships [Member] | Miltope [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 3,100 | 3,100
Accumulated Amortization | (1,566) | (1,438)
Net Carrying Amount | 1,534 | 1,662
Customer Contract Relationships [Member] | RITEC [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 2,830 | 2,830
Accumulated Amortization | (608) | (461)
Net Carrying Amount | 2,222 | 2,369
Non-Competition Agreement [Member] | RITEC [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 950 | 950
Accumulated Amortization | (586) | (491)
Net Carrying Amount | 364 | 459
Existing Technology [Member] | TrojanLabel ApS [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 2,327 | 2,327
Accumulated Amortization | (535) | (350)
Currency Translation Adjustment | 174 | 313
Net Carrying Amount | 1,966 | 2,290
Distributor Relations [Member] | TrojanLabel ApS [Member] |  |
Finite-Lived Intangible Assets [Line Items] |  |
Gross Carrying Amount | 937 | 937
Accumulated Amortization | (151) | (99)
Currency Translation Adjustment | 70 | 130
Net Carrying Amount | $ 856 | $ 968

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