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Acquisition - Additional Information (Detail) (Miltope's Ruggedized Printer Product Line Operation [Member], USD $)	0 Months Ended	6 Months Ended
	Jan. 22, 2014	Aug. 02, 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
Funded acquisition using existing cash	6,732,000
Amount held in escrow related to business acquisition			$ 500,000
Duration of escrow deposits		12 months
Transition services period		6 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 of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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