XML 23 R39.htm IDEA: XBRL DOCUMENT
v3.20.1

Loans and Allowance for Loan Losses - Schedule of Risk Categories by Loan Class (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Loans and Leases Receivable, Gross, Total | $ 561,044 | $ 538,392
One-to-Four Family Residential Real Estate Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 148,994 | 146,505
Construction and Land Loan [Member] |  |
Loans and Leases Receivable, Gross, Total | 24,657 | 22,459
Commercial Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 121,271 | 109,612
Agriculture Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 96,120 | 98,558
Municipal Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 2,628 | 2,656
Consumer Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 25,662 | 25,101
Loans Receivables Non Classified [Member] |  |
Loans and Leases Receivable, Gross, Total | 540,657 | 520,275
Loans Receivables Non Classified [Member] | One-to-Four Family Residential Real Estate Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 147,591 | 145,311
Loans Receivables Non Classified [Member] | Construction and Land Loan [Member] |  |
Loans and Leases Receivable, Gross, Total | 23,861 | 21,560
Loans Receivables Non Classified [Member] | Commercial Real Estate [Member] |  |
Loans and Leases Receivable, Gross, Total | 137,577 | 130,714
Loans Receivables Non Classified [Member] | Commercial Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 113,195 | 101,678
Loans Receivables Non Classified [Member] | Agriculture Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 90,158 | 93,259
Loans Receivables Non Classified [Member] | Municipal Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 2,628 | 2,656
Loans Receivables Non Classified [Member] | Consumer Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 25,647 | 25,097
Loans Receivables Classified [Member] |  |
Loans and Leases Receivable, Gross, Total | 20,387 | 18,117
Loans Receivables Classified [Member] | One-to-Four Family Residential Real Estate Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 1,403 | 1,194
Loans Receivables Classified [Member] | Construction and Land Loan [Member] |  |
Loans and Leases Receivable, Gross, Total | 796 | 899
Loans Receivables Classified [Member] | Commercial Real Estate [Member] |  |
Loans and Leases Receivable, Gross, Total | 4,135 | 2,787
Loans Receivables Classified [Member] | Commercial Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 8,076 | 7,934
Loans Receivables Classified [Member] | Agriculture Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | 5,962 | 5,299
Loans Receivables Classified [Member] | Municipal Loans [Member] |  |
Loans and Leases Receivable, Gross, Total |  |
Loans Receivables Classified [Member] | Consumer Loans [Member] |  |
Loans and Leases Receivable, Gross, Total | $ 15 | $ 4

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=121593590&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_FinancialInstrumentAxis=LARK_OneToFourFamilyResidentialRealEstateMember
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_CommercialLoansMember
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_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=LARK_LoansReceivablesNonClassifiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=LARK_LoansReceivablesClassifiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |