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Summary of Significant Accounting Policies (Details) - Schedule of currency exchange rate	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Schedule of currency exchange rate [Abstract]
Year-end spot rate	US$1=RMB7.1135	US$1=RMB6.4580	US$1=RMB6.8033
Average rate	US$1=RMB6.5532	US$1=RMB6.5095	US$1=RMB7.0077

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- Definition

Description of average rate.

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No definition available.

+ Details

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Namespace Prefix:	upc_
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Period Type:	duration

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- Definition

Description of year end spot rate.

+ References

No definition available.

+ Details

Name:	upc_DescriptionOfYearEndSpotRate
Namespace Prefix:	upc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

Name:	upc_ScheduleOfCurrencyExchangeRateAbstract
Namespace Prefix:	upc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration