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Business and Product Line Acquisitions - Additional Information (Detail) (USD $)
 0 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended
Jul. 01, 2013
SyrVet, Inc.
Jul. 01, 2013
SyrVet, Inc.
Trademarks
Oct. 31, 2013
Macleod Pharmaceuticals
Oct. 01, 2012
Macleod Pharmaceuticals
Jan. 02, 2013
Scidera Genomics,LLC
Nov. 01, 2013
Prima Tech Incorporated
Nov. 01, 2013
Prima Tech Incorporated
Trademarks
Jan. 02, 2014
Chem Tech Ltd
Subsequent Event
Business Acquisition [Line Items]                
Cash consideration for purchase of business $ 10,012,000     $ 9,918,000 $ 3,400,000 $ 12,068,000   $ 17,185,000
Contingent consideration potential payment 1,500,000     100,000   600,000   1,000,000
Purchase price allocation for accounts receivable 747,000     353,000   963,000    
Purchase price allocation for inventory 2,195,000     1,238,000   2,944,000    
Purchase price allocation for fixed assets 556,000     300,000 246,000 1,653,000    
Purchase price allocation for current liabilities 226,000     82,000   1,840,000    
Purchase price allocation for deferred tax liabilities, current       2,054,000        
Allocation of purchase price for contingent consideration potential payment 700,000     100,000   200,000    
Purchase price allocation for intangible assets 3,010,000     5,542,000 1,570,000 5,275,000    
Business Acquisition Contingent Consideration Cash Payment     62,000          
Purchase price allocation for current assets         35,000      
Sales from International Markets 30.00%              
Purchase price allocation for non-amortizable trademarks   347,000         196,000  
Finite lived intangible assets, useful life 15 years         15 years    
Purchase price allocation for prepaid assets           $ 8,000