XML 37 R35.htm IDEA: XBRL DOCUMENT
v3.19.3

LOANS RECEIVABLE AND ALLOWANCE FOR LOAN LOSSES - Risk ratings of loans by categories of loans (Details) $ in Thousands | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) loan | Dec. 31, 2018 USD ($) loan | Sep. 30, 2018 USD ($) | Dec. 31, 2017 USD ($)
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 283,889 | $ 299,120 |  |
Non-accrual | 4,229 | 1,947 | $ 4,685 | $ 3,270
Troubled debt restructures | $ 237 | $ 248 |  |
Number of TDRs accounts | loan | 2 | 2 |  |
Non-performing TDRs | loan | 42 | 44 |  |
Number of non-performing TDRs accounts | loan | 1 | 1 |  |
Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 278,903 | $ 297,224 |  |
Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  | 1,069 |  |
Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 4,955 | 742 |  |
Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 31 | 85 |  |
Consumer |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 12,369 | 13,071 |  |
Non-accrual | 144 | 186 | 122 | 185
Troubled debt restructures | $ 42 | $ 44 |  |
Number of TDRs accounts | loan | 1 | 1 |  |
Non-performing TDRs | loan | 42 | 44 |  |
Number of non-performing TDRs accounts | loan | 1 | 1 |  |
Consumer | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 12,225 | $ 12,888 |  |
Consumer | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 144 | 183 |  |
Residential Real estate |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 80,211 | 82,637 |  |
Non-accrual | 756 | 956 | 1,753 | 2,124
Residential Real estate | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 79,453 | 82,111 |  |
Residential Real estate | Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  | 424 |  |
Residential Real estate | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 758 | 102 |  |
Indirect |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 106,088 | 116,698 |  |
Non-accrual | 36 | 116 | 129 | 88
Indirect | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 106,053 | 115,724 |  |
Indirect | Special mention |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total |  | 645 |  |
Indirect | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 4 | 244 |  |
Indirect | Doubtful |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 31 | 85 |  |
Commercial |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 11,350 | 14,284 |  |
Non-accrual |  | 27 |  | 48
Troubled debt restructures | $ 195 | $ 204 |  |
Number of TDRs accounts | loan | 1 | 1 |  |
Commercial | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 11,155 | $ 14,284 |  |
Commercial | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 195 |  |  |
Construction |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 3,161 | 2,317 |  |
Non-accrual |  |  |  | 318
Construction | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 3,161 | 2,317 |  |
Commercial Real Estate |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 70,710 | 70,113 |  |
Non-accrual | 3,293 | 662 | $ 2,371 | $ 507
Commercial Real Estate | Pass |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | 66,856 | 69,900 |  |
Commercial Real Estate | Substandard |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Total | $ 3,854 | $ 213 |  |

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 Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsNumberOfContracts2
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable modified as troubled debt restructuring. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953676-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 40 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118939409&loc=d3e18845-111554 + Details
Name: | us-gaap_FinancingReceivableModificationsRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524 + Details
Name: | us-gaap_FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of financing receivable on nonaccrual status. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118936363&loc=d3e5111-111524 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 16 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919258-210447 + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentNonaccrualStatus
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118952595&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
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_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
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_ResidentialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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