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Acquisition - Additional Information (Detail) (Miltope's Ruggedized Printer Product Line Operation [Member], USD $)	9 Months Ended
	Nov. 01, 2014	Jan. 22, 2014
Miltope's Ruggedized Printer Product Line Operation [Member]
Business Acquisition [Line Items]
Completion date of acquisition	Jan. 22, 2014
Purchase price of the acquisition		$ 6,732,000
Amount held in escrow related to business acquisition		$ 500,000
Duration of escrow deposits	12 months

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Cash held in escrow in regards to purchase of business to protect Astro-Med Inc in case it is determined that there was some breach of representation or warranty.

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Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format.

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Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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