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           Basis of Presentation and Nature of Business - Additional Information (Detail) (Flux Power Inc [Member], USD $) 
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        1 Months Ended | 
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           Jun. 14, 2012 
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           Flux Power Inc [Member] 
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| Organization And Basis Of Presentation [Line Items] | |
| Shares issued as part of Flux Power Inc. acquisition | 37,714,514 | 
| Share exchange ratio | $ 2.9547039 | 
| Business acquisition, percentage of share in Acquiree | 91.00% | 
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- Definition 
          Business Acquisition, Share Exchange Ratio No definition available. 
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- Definition 
          Business Combination Percentage Equity Interest in Acquiree No definition available. 
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- Details 
          
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- Definition 
          Number of shares of equity interests issued or issuable to acquire entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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