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Acquisition - Additional Information (Detail) - USD ($)
1 Months Ended 3 Months Ended
Dec. 31, 2015
Apr. 30, 2016
Other Intangible Assets [Member]    
Business Acquisition [Line Items]    
Weighted Average Remaining Life   9 years 6 months
Trade Name [Member]    
Business Acquisition [Line Items]    
Intangible assets amount   $ 760,000
Klein Associates Inc. [Member] | Equipment Manufacturing and Sales [Member]    
Business Acquisition [Line Items]    
Business acquisition, cash paid $ 10,000,000