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Goodwill and Other Intangible Assets - Purchase Price Allocated (Detail) (USD $)
0 Months Ended 1 Months Ended 3 Months Ended
Apr. 30, 2009
Mar. 31, 2009
Mar. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period     12 years 2 months 12 days
Net tangible assets   $ 36,000  
Total   5,135,000  
Customer relationships and developed technology [Member]
     
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period     8 years
Allocated purchase Price   1,310,000  
Customer relationships and developed technology [Member] | Minimum [Member]
     
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period   6 years  
Customer relationships and developed technology [Member] | Maximum [Member]
     
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period   9 years  
In-process research and development [Member]
     
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period       
Allocated purchase Price   1,340,000  
Trade name [Member]
     
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period 15 years 15 years 15 years
Allocated purchase Price   310,000  
Goodwill [Member]
     
Acquired Finite-Lived Intangible Assets [Line Items]      
Weighted Average Amortization Period       
Goodwill   $ 2,139,000