XML 56 R83.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Fair Value Measurements - Additional Information (Detail) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 Property Loan | Dec. 31, 2011 | Dec. 31, 2012
Fair Value Disclosures [Abstract] |  |  |
Number of loans consisted under non-recurring assets | 21 |  |
Number of impaired loans classified as nonaccrual loans | 13 |  |
Number of impaired loans classified as accruing loans | 8 |  |
Number of properties classified as OREO | 4 |  |
Valuation allowance allocation to the impaired loans | $ 1,163,567 |  |
Maryland financial bank stock written down |  | 70,000 |
Maryland financial bank stock | $ 30,000 | $ 30,000 | $ 30,000

X
- Definition Number of loan classified as impaired and accruing loans as on the balance sheet date. + References No definition available. + Details
Name: | glbz_ImpairedLoansClassifiedAsAccruingLoansNumberOfLoan
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of loan classified as impaired and non accrual as on the balance sheet date. + References No definition available. + Details
Name: | glbz_ImpairedLoansClassifiedAsNonaccrualNumberOfLoan
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Maryland Financial Bank (MFB) stock represents an equity interest in a MFB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity). + References No definition available. + Details
Name: | glbz_MarylandFinancialBankStock
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of Maryland Financial Bank stock written down during the period due to price of new stock offering + References No definition available. + Details
Name: | glbz_MarylandFinancialBankStockWrittenDown
Namespace Prefix: | glbz_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Represents number of loans. + References No definition available. + Details
Name: | glbz_NumberOfLoans
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number Of Other Real Estate Owned Assets. + References No definition available. + Details
Name: | glbz_NumberOfOtherRealEstateOwnedAssets
Namespace Prefix: | glbz_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=28368275&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant