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Acquisitions - Schedule of Unaudited Pro Forma Results of Operations Assumed (Details)
$ / shares in Units, $ in Thousands
3 Months Ended
Jul. 31, 2021
USD ($)
$ / shares
Business Combinations [Abstract]  
Net sales $ 65,193
Income from operations $ 4,240
Net income per share - diluted | $ / shares $ 0.24