XML 50 R41.htm IDEA: XBRL DOCUMENT
v3.22.1

RECENT ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) | Jan. 01, 2021 | Mar. 31, 2022 | Dec. 31, 2021 | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | --- | --- | --- | ---
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  | $ 2,380,000 | $ 2,470,000 |  | $ 1,476,000
Reserve for unfunded commitments |  | $ 354,000 | $ 371,000 | $ 478,000 | 33,000
Total allowance for credit losses |  |  |  |  | 1,509,000
Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | $ 1,574,000 |  |  |  |
Reserve for unfunded commitments | 457,000 |  |  |  |
Total allowance for credit losses | 2,031,000 |  |  |  |
Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 3,050,000 |  |  |  |
Reserve for unfunded commitments | 490,000 |  |  |  |
Total allowance for credit losses | 3,540,000 |  |  |  |
Real Estate Loan |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 781,000
Real Estate Loan | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 1,141,000 |  |  |  |
Real Estate Loan | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 1,922,000 |  |  |  |
Real Estate Loan | Construction And Land Development [Member] |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 10,000
Real Estate Loan | Construction And Land Development [Member] | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 16,000 |  |  |  |
Real Estate Loan | Construction And Land Development [Member] | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 26,000 |  |  |  |
Real Estate Loan | Farmland |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 2,000
Real Estate Loan | Farmland | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 9,000 |  |  |  |
Real Estate Loan | Farmland | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 11,000 |  |  |  |
Real Estate Loan | Single-family |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 512,000
Real Estate Loan | Single-family | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 854,000 |  |  |  |
Real Estate Loan | Single-family | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 1,366,000 |  |  |  |
Real Estate Loan | Multi-family |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 39,000
Real Estate Loan | Multi-family | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 63,000 |  |  |  |
Real Estate Loan | Multi-family | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 102,000 |  |  |  |
Real Estate Loan | Commercial |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 218,000
Real Estate Loan | Commercial | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 199,000 |  |  |  |
Real Estate Loan | Commercial | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 417,000 |  |  |  |
Commercial and Industrial |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 115,000
Commercial and Industrial | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 114,000 |  |  |  |
Commercial and Industrial | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 229,000 |  |  |  |
Commercial and Industrial | Commercial and industrial |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 67,000
Commercial and Industrial | Commercial and industrial | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 120,000 |  |  |  |
Commercial and Industrial | Commercial and industrial | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 187,000 |  |  |  |
Commercial and Industrial | SBA Guaranty |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 48,000
Commercial and Industrial | SBA Guaranty | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | (6,000) |  |  |  |
Commercial and Industrial | SBA Guaranty | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 42,000 |  |  |  |
Consumer Loans |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 580,000
Consumer Loans | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 319,000 |  |  |  |
Consumer Loans | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 899,000 |  |  |  |
Consumer Loans | Consumer and Indirect |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | 11,000
Consumer Loans | Consumer and Indirect | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 46,000 |  |  |  |
Consumer Loans | Consumer and Indirect | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 57,000 |  |  |  |
Consumer Loans | Automobile |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses |  |  |  |  | $ 569,000
Consumer Loans | Automobile | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 273,000 |  |  |  |
Consumer Loans | Automobile | Adjusted balance | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Allowance for loan losses | 842,000 |  |  |  |
Retained Earnings [Member] | Adjustment | ASU 2016-13 |  |  |  |  |
RECENT ACCOUNTING PRONOUNCEMENTS |  |  |  |  |
Total allowance for credit losses | 2,031,000 |  |  |  |
Allowance for credit losses, tax effect | (559,000) |  |  |  |
Allowance for credit losses net of tax | $ 1,472,000 |  |  |  |

X
- Definition The amount of allowance for credit losses. + References No definition available. + Details
Name: | glbz_AllowanceForCreditLosses
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount allowance for credit losses net of tax. + References No definition available. + Details
Name: | glbz_AllowanceForCreditLossesNetOfTax
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of allowance for credit losses tax effect. + References No definition available. + Details
Name: | glbz_AllowanceForCreditLossesTaxAmount
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of reserve for unfunded commitments. + References No definition available. + Details
Name: | glbz_ReserveForUnfundedCommitments
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI http://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 No definition available. + Details
Name: | us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AdjustmentsForNewAccountingPronouncementsAxis=us-gaap_AccountingStandardsUpdate201613Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CumulativeEffectPeriodOfAdoptionAxis=srt_CumulativeEffectPeriodOfAdoptionAdjustedBalanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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

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

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

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

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

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

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

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

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |