Intangible Assets - Fair Value of Acquired Identifiable Intangible Assets and Related Estimated Useful Lives (Detail) - USD ($) $ in Thousands	Jul. 28, 2018	Jan. 31, 2018
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