XML 48 R37.htm IDEA: XBRL DOCUMENT
v3.19.2

Loans and Allowance for Loan Losses - Schedule of Impaired Financing Receivables (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Unpaid contractual principal | $ 13,016 | $ 10,641
Impaired loan balance | 11,025 | 8,691
Impaired loans without an allowance | 7,956 | 5,994
Impaired loans with an allowance | 3,069 | 2,697
Related allowance recorded | 651 | 310
Year-to-date average loan balance | 11,213 | 9,745
Year-to-date interest income recognized | 296 | 603
One-to-Four Family Residential Real Estate Loans [Member] |  |
Unpaid contractual principal | 1,413 | 623
Impaired loan balance | 1,372 | 623
Impaired loans without an allowance | 1,172 | 413
Impaired loans with an allowance | 200 | 210
Related allowance recorded | 72 | 100
Year-to-date average loan balance | 1,430 | 640
Year-to-date interest income recognized | 5 | 10
Construction and Land Loan [Member] |  |
Unpaid contractual principal | 3,784 | 3,543
Impaired loan balance | 2,049 | 1,808
Impaired loans without an allowance | 1,429 | 1,383
Impaired loans with an allowance | 620 | 425
Related allowance recorded | 191 | 103
Year-to-date average loan balance | 2,137 | 2,689
Year-to-date interest income recognized | 20 | 53
Commercial Real Estate Loans [Member] |  |
Unpaid contractual principal | 5,248 | 3,912
Impaired loan balance | 5,248 | 3,912
Impaired loans without an allowance | 3,289 | 2,120
Impaired loans with an allowance | 1,959 | 1,792
Related allowance recorded | 274 | 67
Year-to-date average loan balance | 5,264 | 3,928
Year-to-date interest income recognized | 237 | 487
Commercial Loans [Member] |  |
Unpaid contractual principal | 1,700 | 1,528
Impaired loan balance | 1,700 | 1,528
Impaired loans without an allowance | 1,410 | 1,446
Impaired loans with an allowance | 290 | 82
Related allowance recorded | 114 | 27
Year-to-date average loan balance | 1,711 | 1,537
Year-to-date interest income recognized | 10 |
Agriculture Loans [Member] |  |
Unpaid contractual principal | 775 | 932
Impaired loan balance | 560 | 717
Impaired loans without an allowance | 560 | 529
Impaired loans with an allowance |  | 188
Related allowance recorded |  | 13
Year-to-date average loan balance | 572 | 844
Year-to-date interest income recognized | 23 | 52
Municipal Loans [Member] |  |
Unpaid contractual principal | 58 | 58
Impaired loan balance | 58 | 58
Impaired loans without an allowance | 58 | 58
Impaired loans with an allowance |  |
Related allowance recorded |  |
Year-to-date average loan balance | 58 | 58
Year-to-date interest income recognized | 1 | 1
Consumer Loans [Member] |  |
Unpaid contractual principal | 38 | 45
Impaired loan balance | 38 | 45
Impaired loans without an allowance | 38 | 45
Impaired loans with an allowance |  |
Related allowance recorded |  |
Year-to-date average loan balance | 41 | 49
Year-to-date interest income recognized |  |

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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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 http://asc.fasb.org/extlink&oid=118936363&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_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_CommercialRealEstateLoanMember
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=us-gaap_ConsumerLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |