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Business Acquisitions - ISG (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Feb. 23, 2021
Oct. 30, 2021
Oct. 31, 2020
Oct. 30, 2021
Oct. 31, 2020
Apr. 30, 2021
Business Acquisitions            
Goodwill   $ 335,888   $ 335,888   $ 314,205
Supplemental Pro Forma Information (unaudited)            
Revenue     $ 116,123      
Net income (loss)     4,151      
Intelligent Systems Group            
Business Acquisitions            
Total $ 29,700          
Contingent consideration paid 6,000         $ 6,000
Additional cash consideration paid   2,000        
Acquisition-related costs   $ 85   $ 736    
Other assets 217          
Goodwill 19,254          
Total assets acquired 35,371          
Fair value of consideration transferred:            
Cash 29,700          
Holdback 150          
Contingent consideration 5,521          
Total paid 35,371          
Supplemental Pro Forma Information (unaudited)            
Revenue     95,548   $ 185,881  
Net income (loss)     $ 2,400   $ 12,786  
Intelligent Systems Group | Technology            
Business Acquisitions            
Intangible assets 11,400          
Intelligent Systems Group | Customer relationships            
Business Acquisitions            
Intangible assets $ 4,500