XML 47 R36.htm IDEA: XBRL DOCUMENT v3.23.3

Summary of Significant Accounting Policies (Details-Foreign CurrencyTranslation)	9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
China, Yuan Renminbi
Average rate	7.2942	6.5985
Exchange rate	7.0279		7.1100
United States of America, Dollars
Average rate	1.0000	1.0000
Exchange rate	1.0000		1.0000

X

- References

No definition available.

+ Details

Name:	FCUV_ForeignCurrencyExchangeRateTranslation2
Namespace Prefix:	FCUV_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481674/830-30-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 830
-SubTopic 30
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479424/830-30-S99-1

+ Details

Name:	us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	srt_CurrencyAxis=currency_CNY
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CurrencyAxis=currency_USD
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: