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Business and Product Line Acquisitions - Additional Information (Detail) - USD ($)
 1 Months Ended 9 Months Ended
Dec. 30, 2020
Jul. 31, 2020
Mar. 26, 2020
Feb. 28, 2020
Jan. 31, 2020
Jan. 09, 2020
Jan. 01, 2020
Feb. 28, 2021
Feb. 28, 2021
Jan. 31, 2021
Business Acquisition [Line Items]                    
Cash consideration for purchase of business       $ 172,000            
Purchase price allocation for inventory     $ 164,000              
Cash payable to former owner for purchase of business $ 8.6                  
Abtek Biologicals Limited                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business         $ 1,401,000          
Purchase price allocation for accounts receivable         135,000          
Purchase price allocation for inventory         207,000          
Purchase price allocation for land, property and equipment         105,000          
Purchase price allocation for intangible assets         484,000          
Purchase price allocation for accounts payable         118,000          
Purchase price allocation for deferred tax liability         92,000          
Purchase price allocation for other current liabilities         34,000          
Cash payable to former owner for purchase of business         119,000         $ 119,000
Cash paid for purchase of business         1,282,000          
Purchase price allocation for Prepaid Expenses         $ 6,000          
Chile-based Magiar Chilena                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business     400,000              
Purchase price allocation for land, property and equipment     53,000              
Purchase price allocation for intangible assets     183,000              
Cash payable to former owner for purchase of business     50,000              
Cash paid for purchase of business     $ 350,000              
Cash payable to former owner for purchase of business, due date     Mar. 26, 2021              
Beef Cattle And Related Assets [Member]                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business   $ 2,351,000                
Purchase price allocation for inventory   51,000                
Purchase price allocation for intangible assets   $ 2,300,000                
Finite lived intangible assets, useful life   15 years                
Megazyme Ltd and Subsidiary Megazyme Inc [Member]                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business 39.8             $ 1,229,000    
Contingent consideration potential payment 2.5                  
Purchase price allocation for accounts receivable 1,339,000                  
Purchase price allocation for inventory 5,619,000                  
Purchase price allocation for land, property and equipment 12,141,000                  
Allocation of purchase price for contingent consideration potential payment 2,458,000                  
Purchase price allocation for intangible assets 19,461,000                  
Purchase price allocation for accounts payable 4,000                  
Purchase price allocation for deferred tax liability 2,389,000                  
Purchase price allocation for other current liabilities 2,405,000                  
Purchase price allocation for Prepaid Expenses 69,000                  
Business acquisition Value of equity interest issued $ 4.9                  
ARGENTINA | Productos Quimicos Magiar                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business             $ 3,776,000      
Contingent consideration potential payment             979,000      
Purchase price allocation for accounts receivable             603,000      
Purchase price allocation for inventory             446,000      
Purchase price allocation for land, property and equipment             36,000      
Allocation of purchase price for contingent consideration potential payment             640,000      
Purchase price allocation for intangible assets             1,471,000      
Purchase price allocation for accounts payable             383,000      
Purchase price allocation for deferred tax liability             441,000      
Purchase price allocation for other current liabilities             312,000      
Cash payable to former owner for purchase of business             540,000      
Cash paid for purchase of business             3,237,000      
Contingent consideration paid             $ 530,000      
Cash payable to former owner for purchase of business, due date             Jan. 01, 2022      
Purchase price allocation for other current assets             $ 221,000      
Gain on Contingent Consideration             110,000      
URUGUAY | Productos Quimicos Magiar                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business             1,488,000      
Contingent consideration potential payment             241,000      
Purchase price allocation for accounts receivable             280,000      
Purchase price allocation for inventory             174,000      
Purchase price allocation for land, property and equipment             16,000      
Allocation of purchase price for contingent consideration potential payment             159,000      
Purchase price allocation for intangible assets             398,000      
Purchase price allocation for accounts payable             204,000      
Purchase price allocation for deferred tax liability             99,000      
Purchase price allocation for other current liabilities             11,000      
Cash payable to former owner for purchase of business             210,000      
Cash paid for purchase of business             1,278,000      
Contingent consideration paid             $ 158,000      
Cash payable to former owner for purchase of business, due date             Jan. 01, 2022      
Purchase price allocation for other current assets             $ 68,000      
Gain on Contingent Consideration             $ 1,000      
ITALY | Diessechem Srl                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business           $ 3,455,000        
Purchase price allocation for accounts receivable           780,000        
Purchase price allocation for inventory           5,000        
Purchase price allocation for intangible assets           1,225,000        
Purchase price allocation for accounts payable           140,000        
Purchase price allocation for deferred tax liability           294,000        
Purchase price allocation for other current liabilities           305,000        
Purchase price allocation for other current assets           $ 160,000        
AUSTRALIA | Cell BioSciences                    
Business Acquisition [Line Items]                    
Cash consideration for purchase of business       3,768,000            
Purchase price allocation for inventory       420,000            
Allocation of purchase price for contingent consideration potential payment       13,000            
Purchase price allocation for intangible assets       1,338,000            
Cash payable to former owner for purchase of business       172,000            
Cash paid for purchase of business       $ 3,596,000            
Minimum                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life                 5 years  
Minimum | Abtek Biologicals Limited                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life         5 years          
Minimum | Chile-based Magiar Chilena                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life     5 years              
Minimum | Megazyme Ltd and Subsidiary Megazyme Inc [Member]                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life 5 years                  
Minimum | ARGENTINA | Productos Quimicos Magiar                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life             5 years      
Minimum | URUGUAY | Productos Quimicos Magiar                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life             5 years      
Minimum | ITALY | Diessechem Srl                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life           5 years        
Minimum | AUSTRALIA | Cell BioSciences                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life       3 years            
Maximum                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life                 25 years  
Maximum | Abtek Biologicals Limited                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life         10 years          
Maximum | Chile-based Magiar Chilena                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life     10 years              
Maximum | Megazyme Ltd and Subsidiary Megazyme Inc [Member]                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life 10 years                  
Maximum | ARGENTINA | Productos Quimicos Magiar                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life             10 years      
Maximum | URUGUAY | Productos Quimicos Magiar                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life             10 years      
Maximum | ITALY | Diessechem Srl                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life           10 years        
Maximum | AUSTRALIA | Cell BioSciences                    
Business Acquisition [Line Items]                    
Finite lived intangible assets, useful life       10 years