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Share-Based Compensation (Details) - Schedule of Summarizes Employee and Non-Employee Stock Option Activity (Parenthetical)	Dec. 31, 2025 $ / shares
Schedule Of Summarizes Employee And Non Employee Stock Option Activity Abstract
Closing price per share	$ 3.88

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- Definition

Schedule Of Summarizes Employee And Non Employee Stock Option Activity Abstract

+ References

No definition available.

+ Details

Name:	neup_ScheduleOfSummarizesEmployeeAndNonEmployeeStockOptionActivityAbstract
Namespace Prefix:	neup_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

Name:	us-gaap_SharePrice
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant