XML 44 R62.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Short Term Borrowings - Additional Information (Detail) (USD $) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2014 Financial_Institution | Dec. 31, 2013 | Dec. 31, 2012
Short-term Debt [Line Items] |  |  |
Federal home loan bank shares owned | 13,278glbz_FederalHomeLoanBankSharesOwned |  |
Percentage of investment to be maintained on total assets | 0.20%glbz_PercentageOfInvestmentToBeMaintainedOnTotalAssets |  |
Additional percentage of investment to be maintained on total advances | 4.50%glbz_AdditionalPercentageOfInvestmentToBeMaintainedOnTotalAdvances |  |
Percentage of credit available on total assets | 20.00%glbz_PercentageOfCreditAvailableOnTotalAssets |  |
Amount of credit available on total assets | $ 69,169,000glbz_AmountOfCreditAvailableOnTotalAssets |  |
Long-term federal home loan bank advances | 20,000,000us-gaap_FederalHomeLoanBankAdvancesLongTerm |  |
Average short-term borrowings | 24,658us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate | 1,838,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate | 399,000us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
Number of financial institution lending credit facility | 3glbz_NumberOfFinancialInstitutionLendingCreditFacility |  |
Federal Funds | Financial Bank One |  |  |
Short-term Debt [Line Items] |  |  |
Line of credit, amount available for borrowing | 3,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = glbz_FederalFundsMember / us-gaap_LineOfCreditFacilityAxis = glbz_FinancialBankOneMember |  |
Federal Funds | Financial Bank Two |  |  |
Short-term Debt [Line Items] |  |  |
Line of credit, amount available for borrowing | 5,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = glbz_FederalFundsMember / us-gaap_LineOfCreditFacilityAxis = glbz_FinancialBankTwoMember |  |
Federal Funds | Financial bank three |  |  |
Short-term Debt [Line Items] |  |  |
Line of credit, amount available for borrowing | $ 8,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_CreditFacilityAxis = glbz_FederalFundsMember / us-gaap_LineOfCreditFacilityAxis = glbz_FinancialBankThreeMember |  |

X
- Definition Additional Percentage Of Investment To Be Maintained On Total Advances. + References No definition available. + Details
Name: | glbz_AdditionalPercentageOfInvestmentToBeMaintainedOnTotalAdvances
Namespace Prefix: | glbz_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount Of Credit Available On Total Assets. + References No definition available. + Details
Name: | glbz_AmountOfCreditAvailableOnTotalAssets
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Federal Home Loan Bank Shares Owned. + References No definition available. + Details
Name: | glbz_FederalHomeLoanBankSharesOwned
Namespace Prefix: | glbz_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the number of financial institutions lending credit facility. + References No definition available. + Details
Name: | glbz_NumberOfFinancialInstitutionLendingCreditFacility
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Credit Available On Total Assets. + References No definition available. + Details
Name: | glbz_PercentageOfCreditAvailableOnTotalAssets
Namespace Prefix: | glbz_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Investment To Be Maintained On Total Assets. + References No definition available. + Details
Name: | glbz_PercentageOfInvestmentToBeMaintainedOnTotalAssets
Namespace Prefix: | glbz_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Including both current and noncurrent portions, Federal Home Loan Bank borrowings initially due beyond one year or beyond the normal operating cycle if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64702-112823 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesLongTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of advances from Federal Home Loan Bank (FHLBank) maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_ShortTermDebtLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CreditFacilityAxis=glbz_FederalFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |