XML 73 R65.htm IDEA: XBRL DOCUMENT v3.23.3

Statutory Reserves (Details)	6 Months Ended
	Jun. 30, 2023 USD ($)	Jun. 30, 2022 CNY (¥)
Statutory Reserves (Details) [Line Items]
Least statutory reserve	10.00%
Statutory reserve
PRC [Member]
Statutory Reserves (Details) [Line Items]
Statutory reserve requirement	50.00%

X

- Definition

Statutory reserve reqirement.

+ References

No definition available.

+ Details

Name:	ck0001872302_StatutoryReserveRequirement
Namespace Prefix:	ck0001872302_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	ck0001872302_StatutoryReservesDetailsLineItems
Namespace Prefix:	ck0001872302_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

least statutory reserve.

+ References

No definition available.

+ Details

Name:	ck0001872302_leastStatutoryReserve
Namespace Prefix:	ck0001872302_
Data Type:	dtr:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of net income for the period determined using accounting principles prescribed or permitted by insurance regulators.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(23)(c))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1

+ Details

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

X

- Details

Name:	us-gaap_RelatedPartyTransactionAxis=ck0001872302_PRCMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: