XML 75 R62.htm IDEA: XBRL DOCUMENT
v3.23.1

Schedule of Impaired Financing Receivables (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | $ 4,894,000 | $ 8,844,000 | $ 14,763,000
Impaired Financing Receivable, Recorded Investment | 4,129,000 | 6,718,000 | 12,462,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 3,374,000 | 6,209,000 | 8,473,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 755,000 | 509,000 | 3,989,000
Impaired Financing Receivable, Related Allowance | 654,000 | 504,000 | 266,000
Year-to-date average loan balance | 4,158,000 | 7,425,000 | 12,948,000
Year-to-date interest income recognized | 136,000 | 167,000 | 148,000
One to Four Family Residential Real Estate Loans [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | 326,000 | 578,000 | 914,000
Impaired Financing Receivable, Recorded Investment | 326,000 | 578,000 | 914,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 326,000 | 578,000 | 914,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  |  |
Impaired Financing Receivable, Related Allowance |  |  |
Year-to-date average loan balance | 357,000 | 590,000 | 925,000
Year-to-date interest income recognized | 9,000 | 8,000 | 3,000
Construction and Land Loans [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | 843,000 | 2,401,000 | 2,872,000
Impaired Financing Receivable, Recorded Investment | 412,000 | 794,000 | 1,137,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 412,000 | 794,000 | 1,137,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  |  |
Impaired Financing Receivable, Related Allowance |  |  |
Year-to-date average loan balance | 243,000 | 895,000 | 1,211,000
Year-to-date interest income recognized | 10,000 | 16,000 | 26,000
Commercial Real Estate Loans [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | 1,224,000 | 2,214,000 | 8,119,000
Impaired Financing Receivable, Recorded Investment | 1,224,000 | 2,214,000 | 8,119,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,224,000 | 2,214,000 | 4,302,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  |  | 3,817,000
Impaired Financing Receivable, Related Allowance |  |  | 177,000
Year-to-date average loan balance | 1,224,000 | 2,388,000 | 8,152,000
Year-to-date interest income recognized | 47,000 | 37,000 | 8,000
Commercial Loan [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | 1,063,000 | 1,380,000 | 1,990,000
Impaired Financing Receivable, Recorded Investment | 812,000 | 1,029,000 | 1,639,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 75,000 | 520,000 | 1,543,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 737,000 | 509,000 | 96,000
Impaired Financing Receivable, Related Allowance | 636,000 | 504,000 | 22,000
Year-to-date average loan balance | 865,000 | 1,096,000 | 1,984,000
Year-to-date interest income recognized | 5,000 | 38,000 | 43,000
Agriculture Loans [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | 1,402,000 | 2,235,000 | 829,000
Impaired Financing Receivable, Recorded Investment | 1,319,000 | 2,067,000 | 614,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 1,301,000 | 2,067,000 | 538,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment | 18,000 |  | 76,000
Impaired Financing Receivable, Related Allowance | 18,000 |  | 67,000
Year-to-date average loan balance | 1,433,000 | 2,420,000 | 618,000
Year-to-date interest income recognized | 64,000 | 67,000 | 67,000
Municipal Loans [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance | 36,000 | 36,000 | 36,000
Impaired Financing Receivable, Recorded Investment | 36,000 | 36,000 | 36,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment | 36,000 | 36,000 | 36,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  |  |
Impaired Financing Receivable, Related Allowance |  |  |
Year-to-date average loan balance | 36,000 | 36,000 | 54,000
Year-to-date interest income recognized | $ 1,000 | $ 1,000 | 1,000
Consumer Loans [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Impaired Financing Receivable, Unpaid Principal Balance |  |  | 3,000
Impaired Financing Receivable, Recorded Investment |  |  | 3,000
Impaired Financing Receivable, with No Related Allowance, Recorded Investment |  |  | 3,000
Impaired Financing Receivable, with Related Allowance, Recorded Investment |  |  |
Impaired Financing Receivable, Related Allowance |  |  |
Consumer [Member] |  |  |
Debt Securities, Held-to-Maturity, Allowance for Credit Loss [Line Items] |  |  |
Year-to-date average loan balance |  |  | 4,000
Year-to-date interest income recognized |  |  |

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

X
- Definition Average amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableAverageRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of investment of impaired financing receivables with related allowance for credit losses and without a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of allowance for credit losses related to recorded investment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableRelatedAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of unpaid principal balance of impaired financing receivables with related allowance for credit losses and without related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (a)(4) -URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableUnpaidPrincipalBalance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is no related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of investment in impaired financing receivables for which there is a related allowance for credit losses. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 14A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953550-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_OneToFourFamilyResidentialRealEstateLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_ConstructionAndLandLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_CommercialRealEstateLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_AgricultureLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_MunicipalLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_ConsumerLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=LARK_ConsumerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |