XML 47 R37.htm IDEA: XBRL DOCUMENT
v3.21.1

Revenue Recognition- Additional Information (Detail) | 9 Months Ended
--- | ---
Feb. 28, 2021
Products and Services, Payment Terms | 30 to 60 days

X
- Definition Products and Services, Payment Terms + References No definition available. + Details
Name: | neog_ProductsAndServicesPaymentTerms
Namespace Prefix: | neog_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration