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Inventories (Tables)
9 Months Ended
Jan. 31, 2023
Inventory Disclosure [Abstract]  
Schedule of Inventory, Current
Inventories, net consisted of the following:
January 31, 2023April 30, 2022
Finished goods$28,546 $31,270 
Work-in-process1,427 1,729 
Paper and other materials325 275 
Total inventories before estimated sales returns and LIFO reserve$30,298 $33,274 
Inventory value of estimated sales returns7,378 7,820 
LIFO reserve(4,509)(4,509)
Inventories, net$33,167 $36,585