XML 92 R81.htm IDEA: XBRL DOCUMENT
v3.21.2

FAIR VALUE - Schedule of Carrying Amounts and Estimated Fair Value of Assets And Liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Reported Value Measurement |  |
Financial assets: |  |
Cash, due from banks, federal funds sold and interest-bearing deposits | $ 447,218 | $ 351,792
Loans, net | 1,856,277 | 1,831,737
Accrued interest receivable | 8,801 | 9,834
Nonmarketable equity securities | 14,011 | 14,095
Financial liabilities: |  |
Deposits | 2,533,026 | 2,286,390
Securities sold under repurchase agreements | 15,336 | 15,631
Accrued interest payable | 565 | 804
Federal Home Loan Bank advances | 49,000 | 109,101
Subordinated debentures | 19,810 | 19,810
Fair Value |  |
Financial assets: |  |
Cash, due from banks, federal funds sold and interest-bearing deposits | 447,218 | 351,792
Loans, net | 1,866,176 | 1,846,868
Accrued interest receivable | 8,801 | 9,834
Nonmarketable equity securities | 14,011 | 14,095
Financial liabilities: |  |
Deposits | 2,534,092 | 2,288,157
Securities sold under repurchase agreements | 15,336 | 15,631
Accrued interest payable | 565 | 804
Federal Home Loan Bank advances | 49,173 | 109,381
Subordinated debentures | 18,745 | 17,406
Fair Value | Level 1 Inputs |  |
Financial assets: |  |
Cash, due from banks, federal funds sold and interest-bearing deposits | 447,218 | 351,792
Loans, net | 0 | 0
Accrued interest receivable | 0 | 0
Nonmarketable equity securities | 0 | 0
Financial liabilities: |  |
Deposits | 2,184,394 | 1,907,587
Securities sold under repurchase agreements | 0 | 0
Accrued interest payable | 0 | 0
Federal Home Loan Bank advances | 0 | 0
Subordinated debentures | 0 | 0
Fair Value | Level 2 Inputs |  |
Financial assets: |  |
Cash, due from banks, federal funds sold and interest-bearing deposits | 0 | 0
Loans, net | 0 | 0
Accrued interest receivable | 8,801 | 9,834
Nonmarketable equity securities | 14,011 | 14,095
Financial liabilities: |  |
Deposits | 349,698 | 380,570
Securities sold under repurchase agreements | 15,336 | 15,631
Accrued interest payable | 565 | 804
Federal Home Loan Bank advances | 49,173 | 109,381
Subordinated debentures | 18,745 | 17,406
Fair Value | Level 3 Inputs |  |
Financial assets: |  |
Cash, due from banks, federal funds sold and interest-bearing deposits | 0 | 0
Loans, net | 1,866,176 | 1,846,868
Accrued interest receivable | 0 | 0
Nonmarketable equity securities | 0 | 0
Financial liabilities: |  |
Deposits | 0 | 0
Securities sold under repurchase agreements | 0 | 0
Accrued interest payable | 0 | 0
Federal Home Loan Bank advances | 0 | 0
Subordinated debentures | $ 0 | $ 0

X
- Definition Interest Receivable, Fair Value Disclosure + References No definition available. + Details
Name: | gnty_InterestReceivableFairValueDisclosure
Namespace Prefix: | gnty_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Nonmarketable Equity Securities, Fair Value Disclosure + References No definition available. + Details
Name: | gnty_NonmarketableEquitySecuritiesFairValueDisclosure
Namespace Prefix: | gnty_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of accrued expenses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_AccruedLiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of deposit liabilities held by the entity, including, but not limited to, foreign and domestic, interest and noninterest bearing, demand deposits, saving deposits, negotiable orders of withdrawal (NOW) and time deposits. + References No definition available. + Details
Name: | us-gaap_DepositsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value of subordinated debt obligations including, but not limited to, subordinated loan, subordinated bond, subordinated debenture or junior debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
Name: | us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of borrowing from Federal Home Loan Bank (FHLBank). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
Name: | us-gaap_FederalHomeLoanBankBorrowingsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FinancialInstrumentsFinancialAssetsBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_FinancialInstrumentsFinancialLiabilitiesBalanceSheetGroupingsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 + Details
Name: | us-gaap_LoansReceivableFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611 + Details
Name: | us-gaap_SecuritiesLoanedOrSoldUnderAgreementsToRepurchaseFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | gnty_FairValueByMeasurementsBasisAxis=us-gaap_CarryingReportedAmountFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | gnty_FairValueByMeasurementsBasisAxis=us-gaap_EstimateOfFairValueFairValueDisclosureMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |