Refers to the number of shares created.

No definition available.

Name:	uoli_NumberOfSharesCreated
Namespace Prefix:	uoli_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

The element represents preferred stock convertible conversion ratio1.

+ References

No definition available.

+ Details

Name:	uoli_PreferredStockConvertibleConversionRatio1
Namespace Prefix:	uoli_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ClassOfStockLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644

+ Details

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

- Definition

The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws.

+ References

+ Details

Name:	us-gaap_PreferredStockSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ References

+ Details

Name:	us-gaap_PreferredStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Description of voting rights of nonredeemable preferred stock. Includes eligibility to vote and votes per share owned. Include also, if any, unusual voting rights.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

+ Details

Name:	us-gaap_PreferredStockVotingRights
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

+ Details

Name:	us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

+ References

No definition available.

+ Details

Name:	us-gaap_StockIssuedDuringPeriodValueIssuedForServices
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesBPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=uoli_ChuangFuQuKuaiLianTechnologyShenzhenLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=uoli_UonliveHongKongLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_SeriesAPreferredStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	uoli_UonliveHongKongLimitedMemberAxis=uoli_UonliveHongKongLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_TitleOfIndividualAxis=srt_DirectorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_ConvertibleCommonStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Preferred stock (Details Narrative) - USD ($)				6 Months Ended
Preferred stock (Details Narrative) - USD ($)	Oct. 07, 2020	May 26, 2020	Sep. 07, 2018	Jun. 30, 2022	Dec. 31, 2021	Jan. 01, 2018
Class of Stock [Line Items]
Preferred stock, shares authorized				100,000,000	100,000,000
Preferred stock, par value (in dollars per share)				$ 0.001	$ 0.001
Preferred Stock, Shares Issued				500,000	500,000
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized				1,000,000	1,000,000	1,000,000
Preferred stock, par value (in dollars per share)				$ 0.001	$ 0.001
Preferred stock, voting rights				The Series B Preferred Stock shall vote on any matter that may from time to time be
Preferred Stock, Shares Issued				150,000	150,000
Series B Preferred Stock [Member] \| Chuang Fu Qu Kuai LianTechnology Shenzhen Limited [Member]
Class of Stock [Line Items]
Shares issued for services - Series B Preferred (in shares)			150,000
Shares issued for services - Series B Preferred			$ 30,000
Series B Preferred Stock [Member] \| Uonlive Hong Kong Limited [Member]
Class of Stock [Line Items]
Shares issued for services - Series B Preferred (in shares)		650,000
Shares issued for services - Series B Preferred		$ 44,479
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred stock, shares authorized				2,000,000	2,000,000
Preferred stock, par value (in dollars per share)				$ 0.001	$ 0.001
Preferred stock, voting rights				the voting rights of the Series A shall not be subject to adjustment unless specifically authorized.
Preferred Stock, Shares Issued				520,000	520,000
Series A Preferred Stock [Member] \| Uonlive Hong Kong Limited [Member]
Class of Stock [Line Items]
Shares issued for services - Series B Preferred (in shares)	520,000
Series A Preferred Stock [Member] \| Director [Member]
Class of Stock [Line Items]
Number of shares created	2,000,000
Series A Preferred Stock [Member] \| Uonlive Hong Kong Limited [Member]
Class of Stock [Line Items]
Shares issued for services - Series B Preferred (in shares)		520,000
Shares issued for services - Series B Preferred	$ 290,990	$ 54,586
Convertible Common Stock [Member]
Class of Stock [Line Items]
Preferred stock, convertible, conversion ratio				1,000