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Related Party Transaction - Additional Information (Detail) - Professional Power Products, Inc. [Member] - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2015 | Sep. 30, 2014 | Apr. 01, 2014
Related Party Transaction [Line Items] |  |  |  |  |
Initial term of lease agreement |  |  | 7 years |  |
Lease agreement expiration date |  |  | Mar. 31, 2021 |  |
Initial lease obligation |  |  |  |  | $ 480,000
Lease expense | $ 120,000 | $ 120,000 | $ 360,000 | $ 240,000 |

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- Definition Initial Lease Term + References No definition available. + Details
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- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
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- Definition Date which lease or group of leases is set to expire, in CCYY-MM-DD format. + References No definition available. + Details
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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717 + Details
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- Details
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