Percentage points added to the reference rate to compute the variable rate on the debt instrument.

No definition available.

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- Definition

Indicates type of variable interest rate on debt instrument.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 470
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477734/942-470-50-3

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- Definition

The effective interest rate at the end of the reporting period.

+ References

+ Details

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- Definition

The effective interest rate during the reporting period.

+ References

+ Details

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
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- Definition

The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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- Definition

Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
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- Definition

The cash inflow from a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
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- Definition

The cash outflow for a borrowing having initial term of repayment within one year or the normal operating cycle, if longer.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 230
-SubTopic 10
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Balance Type:	credit
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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
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-Topic 852
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- 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.

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- Definition

It represent the amount of line of credit amount under drawn down facility.

+ References

No definition available.

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Name:	us-gaap_LineOfCreditFacilityAxis=yi_ChinaCiticBankMember
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Name:	us-gaap_LineOfCreditFacilityAxis=yi_ChinaMerchantBankMember
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SHORT-TERM BORROWINGS (Details) ¥ in Thousands, $ in Thousands	1 Months Ended			12 Months Ended
	Jun. 30, 2021 CNY (¥)	Jun. 30, 2020 CNY (¥)	Sep. 30, 2019 USD ($)	Dec. 31, 2025 CNY (¥)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 CNY (¥)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 CNY (¥)	Dec. 31, 2025 USD ($)	Oct. 31, 2025 CNY (¥)	Sep. 30, 2025 CNY (¥)	Mar. 31, 2025 CNY (¥)	Jan. 31, 2025 CNY (¥)	Dec. 31, 2024 USD ($)	Oct. 31, 2024 USD ($)	Jan. 31, 2024 CNY (¥)	Mar. 31, 2023 CNY (¥)	Nov. 30, 2022 CNY (¥)
Notes receivable
Short-term Debt				¥ 187,631		¥ 160,981			$ 26,831
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]				us-gaap:PrimeRateMember	us-gaap:PrimeRateMember	us-gaap:PrimeRateMember	us-gaap:PrimeRateMember	us-gaap:PrimeRateMember
Proceeds from loan				¥ 287,631	$ 41,131	¥ 438,864		¥ 919,635
Repayments of debt				¥ 260,981	$ 37,320	¥ 615,958		¥ 750,127
1 Pharmacy Technology \| Industrial Bank
Notes receivable
Maximum borrowing capacity	¥ 200,000																	¥ 200,000
Debt Instrument, Basis Spread on Variable Rate	0.78%			0.55%	0.55%	0.55%	0.55%	0.85%
Revolving credit facility
Notes receivable
Short-term Debt				¥ 187,631		¥ 160,981
Amount of undrawn balance under credit facilities agreements				¥ 112,369
Average annual interest rate				2.69%		3.67%			2.69%					3.67%
Revolving credit facility \| China CITIC Bank
Notes receivable
Proceeds from line of credit				¥ 10,000		¥ 0
Repayments of line of credit				0		19,990
Line of credit outstanding				¥ 10,000		¥ 0
Interest rate				2.40%	2.40%	2.40%	2.40%
Revolving credit facility \| Bank of Ningbo Co Ltd
Notes receivable
Maximum borrowing capacity						¥ 50,000
Revolving credit facility \| 1 Pharmacy Technology \| China Merchant Bank
Notes receivable
Maximum borrowing capacity			$ 100,000	¥ 200,000
Debt Instrument, Basis Spread on Variable Rate			0.30%
Proceeds from line of credit				0		347,864
Repayments of line of credit				49,981		495,968
Line of credit outstanding				¥ 0		¥ 49,981
Interest rate				3.65%	3.65%	3.65%	3.65%
Revolving credit facility \| 1 Pharmacy Technology \| Industrial Bank
Notes receivable
Maximum borrowing capacity		¥ 100,000														¥ 130,000
Debt Instrument, Basis Spread on Variable Rate		0.35%
Line of credit drawn down facility				¥ 0		¥ 50,000
Repayments of line of credit				50,000		20,000
Line of credit outstanding				¥ 0		¥ 50,000
Interest rate				2.78%	2.78%	2.78%	2.78%
Working capital facility \| 1 Pharmacy Technology \| Shanghai Pudong Development Bank
Notes receivable
Maximum borrowing capacity											¥ 50,000	¥ 50,000			$ 30,000
Yihao Pharmacy \| Revolving credit facility \| China CITIC Bank
Notes receivable
Maximum borrowing capacity										¥ 30,000							¥ 20,000
Yihao Pharmacy \| Revolving credit facility \| Bank of Ningbo Co Ltd
Notes receivable
Proceeds from line of credit				¥ 100,000			$ 31,000
Repayments of line of credit				81,000		¥ 0
Line of credit outstanding				¥ 50,000										$ 31,000
Interest rate				2.85%	2.85%	3.00%	3.00%
Yihao Pharmacy \| Revolving credit facility \| Bank of Communications
Notes receivable
Maximum borrowing capacity													¥ 30,000
Proceeds from line of credit				¥ 30,000
Line of credit outstanding				¥ 30,000
Interest rate				3.40%	3.40%
Yihao Pharmacy \| Revolving credit facility \| China Everbright Bank
Notes receivable
Maximum borrowing capacity										¥ 80,000
Proceeds from line of credit				¥ 10,000
Line of credit outstanding				¥ 10,000
Interest rate				2.85%	2.85%
Yihao Pharmacy \| Revolving credit facility \| Guangdong Huaxing Bank
Notes receivable
Maximum borrowing capacity				¥ 10,000
Proceeds from line of credit				7,631
Line of credit outstanding				¥ 7,631
Interest rate				3.00%	3.00%
Yihao Pharmacy \| Revolving credit facility \| 1 Pharmacy Technology \| Shanghai Pudong Development Bank
Notes receivable
Maximum borrowing capacity												¥ 100,000
Yihao Pharmacy \| Working capital facility \| 1 Pharmacy Technology \| Shanghai Pudong Development Bank
Notes receivable
Proceeds from line of credit				¥ 130,000		¥ 30,000
Repayments of line of credit				80,000		50,000
Line of credit outstanding				¥ 80,000		¥ 30,000
Interest rate				2.65%	2.65%	2.45%	2.45%