Amount, excluding accrued interest, of decrease in allowance for credit loss on financing receivable from writeoff. Excludes net investment in lease.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestAllowanceForCreditLossWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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

- References

No definition available.

+ Details

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

- Definition

Amortized cost excluding accrued interest, before allowance for credit loss, fee, and loan in process, of financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(7))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLossFeeAndLoanInProcess
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated more than five years prior to current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 79
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479294/326-20-55-79

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3B
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-3B

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestOriginatedMoreThanFiveYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable that can be withdrawn, repaid, and redrawn.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestRevolving
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated four years prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFiveOriginatedFourYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated three years prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated three years before current fiscal year. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479319/326-20-50-6

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearFourOriginatedThreeYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amortized cost excluding accrued interest, of financing receivable originated in current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearOneOriginatedCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amortized cost excluding accrued interest, of financing receivable originated two years prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated two years before current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearThreeOriginatedTwoYearsBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amortized cost excluding accrued interest of financing receivable originated in fiscal year prior to current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount, excluding accrued interest, of writeoff of financing receivable originated in fiscal year before current fiscal year. Excludes net investment in lease.

+ References

+ Details

Name:	us-gaap_FinancingReceivableExcludingAccruedInterestYearTwoOriginatedFiscalYearBeforeCurrentFiscalYearWriteoff
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnsb_RevolvingOpenEndLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_PerformingFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnsb_OtherConstructionAndLandDevelopmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialRealEstateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnsb_CommercialAndIndustrialLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnsb_MunicipalLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnsb_FirstLiensLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancialInstrumentPerformanceStatusAxis=us-gaap_NonperformingFinancingReceivableMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=pnsb_JuniorLiensLoanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

LOANS - Credit quality indicator (Details) - USD ($)	3 Months Ended	6 Months Ended		12 Months Ended
LOANS - Credit quality indicator (Details) - USD ($)	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Total gross loans
Total gross loans		$ 93,756,724		$ 91,321,812
Current period gross write off
Total gross write off	$ 1,504	891	$ 4,910
Revolving, open-end \| Performing
Total gross loans
Revolving		4,427,561
Total gross loans		4,427,561
Commercial \| Other construction and land/land development
Total gross loans
2026/2025		181,236		354,590
2025/2024		259,462		575,616
2024/2023		545,630		34,818
2023/2022		32,077		61,851
2022/2021		55,970		47,771
Prior		54,817		12,543
Total gross loans		1,129,192		1,087,189
Commercial \| Other construction and land/land development \| Pass
Total gross loans
2026/2025		181,236		354,590
2025/2024		259,462		575,616
2024/2023		545,630		34,818
2023/2022		32,077		61,851
2022/2021		55,970		47,771
Prior		54,817		12,543
Total gross loans		1,129,192		1,087,189
Commercial \| Commercial real estate
Total gross loans
2026/2025		1,575,432		2,855,732
2025/2024		2,234,902		1,326,304
2024/2023		1,262,634
2023/2022				860,452
2022/2021		827,298		966,081
Prior		1,081,553		1,115,255
Revolving		59,860		24,002
Total gross loans		7,041,679		7,147,826
Commercial \| Commercial real estate \| Pass
Total gross loans
2026/2025		1,575,432		2,855,732
2025/2024		2,234,902		1,326,304
2024/2023		1,262,634
2023/2022				860,452
2022/2021		827,298		966,081
Prior		1,081,553		1,115,255
Revolving		59,860		24,002
Total gross loans		7,041,679		7,147,826
Commercial \| Commercial and industrial
Total gross loans
2026/2025		158,098		1,568,777
2025/2024		1,642,544		21,623
2024/2023		15,831		2,865
Prior				65,974
Revolving		867,743		657,840
Total gross loans		2,684,216		2,317,079
Commercial \| Commercial and industrial \| Pass
Total gross loans
2026/2025		158,098		1,470,768
2025/2024		1,642,544		21,623
2024/2023		15,831		2,865
Prior				65,974
Revolving		867,743		657,840
Total gross loans		2,684,216		2,219,070
Commercial \| Commercial and industrial \| Special mention
Total gross loans
2026/2025				98,009
Total gross loans				98,009
Commercial \| Municipal
Total gross loans
Prior		43,576		46,214
Total gross loans		43,576		46,214
Commercial \| Municipal \| Pass
Total gross loans
Prior		43,576		46,214
Total gross loans		43,576		46,214
Residential real estate \| Residential construction
Total gross loans
2026/2025		849,615		888,416
2025/2024		840,056
Total gross loans		1,689,671		888,416
Residential real estate \| Residential construction \| Performing
Total gross loans
2026/2025		849,615		888,416
2025/2024		840,056
Total gross loans		1,689,671		888,416
Residential real estate \| Revolving, open-end
Total gross loans
Revolving		4,427,561		3,464,812
Total gross loans		4,427,561		3,464,812
Residential real estate \| Revolving, open-end \| Performing
Total gross loans
Revolving				3,464,812
Total gross loans				3,464,812
Residential real estate \| First liens
Total gross loans
2026/2025		5,215,114		5,423,253
2025/2024		6,100,229		8,611,224
2024/2023		7,203,833		8,908,527
2023/2022		7,570,981		11,451,615
2022/2021		10,905,012		13,761,538
Prior		37,512,937		25,750,573
Total gross loans		74,508,106		73,906,730
Residential real estate \| First liens \| Performing
Total gross loans
2026/2025		5,215,114		5,423,253
2025/2024		6,100,229		8,611,224
2024/2023		7,203,833		8,115,642
2023/2022		7,115,759		11,451,615
2022/2021		10,905,012		13,761,538
Prior		37,512,937		25,692,748
Total gross loans		74,052,884		73,056,020
Residential real estate \| First liens \| Non Performing
Total gross loans
2024/2023				792,885
2023/2022		455,222
Prior				57,825
Total gross loans		455,222		850,710
Residential real estate \| Junior liens
Total gross loans
2026/2025		273,982		638,011
2025/2024		471,799		390,630
2024/2023		336,679		79,447
2023/2022		37,341		125,061
2022/2021		118,998
Prior		12,113		30,578
Total gross loans		1,250,912		1,263,727
Residential real estate \| Junior liens \| Performing
Total gross loans
2026/2025		273,982		638,011
2025/2024		471,799		390,630
2024/2023		336,679		79,447
2023/2022		37,341		125,061
2022/2021		118,998
Prior		12,113		30,578
Total gross loans		1,250,912		1,263,727
Consumer
Total gross loans
2026/2025		197,025		570,106
2025/2024		383,622		284,421
2024/2023		158,729		195,104
2023/2022		135,247		27,231
2022/2021		5,278		59,335
Prior		101,910		63,622
Total gross loans		981,811		1,199,819
Current period gross write off
2025/2024		891		928
2024/2023				1,504
2023/2022				3,406
Total gross write off	$ 1,504	891	$ 4,910	5,838
Consumer \| Performing
Total gross loans
2026/2025		197,025		569,215
2025/2024		383,622		284,421
2024/2023		158,729		195,104
2023/2022		135,247		27,231
2022/2021		5,278		59,335
Prior		101,910		63,622
Total gross loans		$ 981,811		1,198,928
Consumer \| Non Performing
Total gross loans
2026/2025				891
Total gross loans				$ 891