XML 71 R58.htm IDEA: XBRL DOCUMENT
v3.25.1

Loans and Allowance for Credit Losses - Loans - Credit Quality Information (Details) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($) loan | Dec. 31, 2022 USD ($)
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | $ 205,219 | $ 176,307 |
Loans, net of deferred fees and costs | 205,219 | 176,307 |
Non-accrual | 360 | 527 | $ 488
Restructured loans to borrowers with financial difficulty | $ 26 | $ 30 |
Number of TDRs accounts | loan | 1 | 1 |
Non-performing TDRs | loan | 26 | 30 |
Number of non-performing TDRs accounts | loan | 1 | 1 |
Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | $ 203,614 | $ 175,709 |
Special mention |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 472 |  |
Substandard |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 1,133 | 598 |
Real Estate Loan |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Loans, net of deferred fees and costs | 161,938 | 136,230 |
Non-accrual | 273 | 145 |
Real Estate Loan | Construction and Land |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 8,882 | 4,636 |
Loans, net of deferred fees and costs | 8,882 | 4,636 |
Real Estate Loan | Construction and Land | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 8,882 | 4,636 |
Real Estate Loan | Farmland |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 315 | 325 |
Loans, net of deferred fees and costs | 315 | 325 |
Real Estate Loan | Farmland | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 315 | 325 |
Real Estate Loan | Single-family Residential |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 98,993 | 86,887 |
Loans, net of deferred fees and costs | 98,993 | 86,887 |
Non-accrual | 149 | 145 | 104
Restructured loans to borrowers with financial difficulty | $ 26 | $ 30 |
Number of TDRs accounts | loan | 1 | 1 |
Non-performing TDRs | loan | 26 | 30 |
Number of non-performing TDRs accounts | loan | 1 | 1 |
Real Estate Loan | Single-family Residential | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | $ 98,844 | $ 86,743 |
Real Estate Loan | Single-family Residential | Substandard |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 149 | 145 |
Real Estate Loan | Multi-family |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 5,022 | 5,165 |
Loans, net of deferred fees and costs | 5,022 | 5,165 |
Real Estate Loan | Multi-family | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 5,022 | 5,165 |
Real Estate Loan | Commercial |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 48,726 | 39,217 |
Loans, net of deferred fees and costs | 48,726 | 39,217 |
Non-accrual | 124 |  |
Real Estate Loan | Commercial | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 47,829 | 39,217 |
Real Estate Loan | Commercial | Substandard |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 897 |  |
Commercial and Industrial |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Loans, net of deferred fees and costs | 22,396 | 16,774 |
Non-accrual |  | 299 |
Commercial and Industrial | Commercial and Industrial |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 16,705 | 10,850 |
Loans, net of deferred fees and costs | 16,705 | 10,850 |
Non-accrual |  | 299 | 299
Commercial and Industrial | Commercial and Industrial | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 16,705 | 10,551 |
Commercial and Industrial | Commercial and Industrial | Substandard |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current |  | 299 |
Commercial and Industrial | SBA guaranty |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 5,691 | 5,924 |
Loans, net of deferred fees and costs | 5,691 | 5,924 |
Commercial and Industrial | SBA guaranty | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 5,219 | 5,924 |
Commercial and Industrial | SBA guaranty | Special mention |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 472 |  |
Consumer Loans |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Loans, net of deferred fees and costs | 20,885 | 23,303 |
Non-accrual | 87 | 83 |
Consumer Loans | Consumer |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 2,880 | 2,039 |
Loans, net of deferred fees and costs | 2,880 | 2,039 |
Consumer Loans | Consumer | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 2,880 | 2,039 |
Consumer Loans | Automobile |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 18,005 | 21,264 |
Loans, net of deferred fees and costs | 18,005 | 21,264 |
Non-accrual | 87 | 83 | $ 85
Consumer Loans | Automobile | Pass |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | 17,918 | 21,110 |
Consumer Loans | Automobile | Substandard |  |  |
Loans and Allowance for Credit Losses - Loans |  |  |
Financing Receivable, Recorded Investment, Current | $ 87 | $ 154 |

X
- Definition Number of financing receivables accounts that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References No definition available. + Details
Name: | glbz_FinancingReceivableModificationsSubsequentDefaultNumberOfAccounts
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References No definition available. + Details
Name: | glbz_FinancingReceivablesModificationsNumberOfContract
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References No definition available. + Details
Name: | glbz_FinancingReceivablesModificationsSubsequentDefaultNumberOfContracts1
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 2: 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 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_FinancingReceivableExcludingAccruedInterestBeforeAllowanceForCreditLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Accumulated amortized cost of financing receivable modified for debtor experiencing financial difficulty. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 33 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-33 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481746/310-40-50-4 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 42 -Subparagraph (a)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-42 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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 Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 29 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-29 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 Reference 3: 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 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (3) -Publisher SEC Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (2) -Publisher SEC Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 16 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-16 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amortized cost, before allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement and net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 13 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481990/310-10-45-13 Reference 2: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-7A Reference 3: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Topic 310 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 29 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481962/310-10-50-29 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (1) -Publisher SEC Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph a -Subparagraph (2) -Publisher SEC Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef -Name Regulation S-K (SK) -Number 229 -Section 1404 -Paragraph a -Publisher SEC Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 80 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479294/326-20-55-80 Reference 8: 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 9: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 14 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-14 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-5 + Details
Name: | us-gaap_NotesReceivableGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_RealEstateLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=glbz_ConstructionAndLandDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=glbz_FarmlandMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_SingleFamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=srt_MultifamilyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialAndIndustrialSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=glbz_CommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=glbz_SbaGuarantyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_AutomobileLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |