Fair Value Measurements - (Details) - USD ($) $ in Thousands	Jul. 30, 2022	Apr. 30, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 12,655	$ 24,716
Contingent consideration		(1,084)
Total		1,084
Significant unobservable inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		(1,084)
Total		1,084
Recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	12,655	24,716
Contingently returnable consideration	71	143
Total	12,726	24,859
Contingent consideration	(1,289)
Total	1,289
Recurring basis | Significant other observable inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	12,655	24,716
Total	12,655	24,716
Recurring basis | Significant unobservable inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingently returnable consideration	71	143
Total	71	$ 143
Contingent consideration	(1,289)
Total	$ 1,289