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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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