XML 30 R20.htm IDEA: XBRL DOCUMENT
v3.20.4

Cash and Marketable Securities (Tables) | 6 Months Ended
--- | ---
Nov. 30, 2020
Cash and Cash Equivalents [Abstract] |
Schedule Of Classification And Maturities Of Marketable Securities | Marketable Securities as of November 30, 2020 and May 31, 2020 are listed below by classification and remaining maturities.
|  |  |  |  | November 30, |  |  | May 31, |
(in thousands) |  | Maturity |  |  | 2020 |  |  | 2020 |
US Treasuries |  |  | 0 - 90 days |  |  | $ | — |  |  | $ | — |
|  |  | 91 - 180 days |  |  |  | — |  |  |  | — |
|  |  | 181 days - 1 year |  |  |  | — |  |  |  | 2,532 |
|  |  | 1 - 2 years |  |  |  | — |  |  |  | — |
Commercial Paper & Corporate Bonds |  |  | 0 - 90 days |  |  |  | 114,237 |  |  |  | 133,130 |
|  |  | 91 - 180 days |  |  |  | 132,758 |  |  |  | 73,824 |
|  |  | 181 days - 1 year |  |  |  | 15,978 |  |  |  | 43,231 |
|  |  | 1 - 2 years |  |  |  | 1,830 |  |  |  | 7,839 |
Certificates of Deposit |  |  | 0 - 90 days |  |  |  | 4,012 |  |  |  | 1,003 |
|  |  | 91 - 180 days |  |  |  | 2,260 |  |  |  | 5,184 |
|  |  | 181 days - 1 year |  |  |  | 4,553 |  |  |  | 6,069 |
|  |  | 1 - 2 years |  |  |  | 1,270 |  |  |  | 4,592 |
Total Marketable Securities |  |  |  |  |  | $ | 276,898 |  |  | $ | 277,404 |
Summary of components of marketable securities | The components of marketable securities at November 30, 2020 are as follows:
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |
(in thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
US Treasuries |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Commercial Paper & Corporate Bonds |  |  | 264,616 |  |  |  | 338 |  |  |  | (151 | ) |  |  | 264,803 |
Certificates of Deposit |  |  | 12,009 |  |  |  | 86 |  |  |  | — |  |  |  | 12,095 |
Total Marketable Securities |  | $ | 276,625 |  |  | $ | 424 |  |  | $ | (151 | ) |  | $ | 276,898 |
The components of marketable securities at May 31, 2020 are as follows:
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  |  |
(in thousands) |  | Cost |  |  | Gains |  |  | Losses |  |  | Fair Value |
US Treasuries |  | $ | 2,502 |  |  | $ | 30 |  |  | $ | — |  |  | $ | 2,532 |
Commercial Paper & Corporate Bonds |  |  | 257,700 |  |  |  | 347 |  |  |  | (23 | ) |  |  | 258,024 |
Certificates of Deposit |  |  | 16,648 |  |  |  | 200 |  |  |  | — |  |  |  | 16,848 |
Total Marketable Securities |  | $ | 276,850 |  |  | $ | 577 |  |  | $ | (23 | ) |  | $ | 277,404 |

X
- Definition Schedule of classification and maturities of marketable securities. + References No definition available. + Details
Name: | neog_ScheduleOfClassificationAndMaturitiesOfMarketableSecuritiesTableTextBlock
Namespace Prefix: | neog_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration