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Operating Leases (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Operating Leased Assets [Line Items] |  |  |
Operating lease expenses | $ 250 | $ 370 | $ 316
Primero Lease [Member] |  |  |
Operating Leased Assets [Line Items] |  |  |
Lease expiration date | Dec. 31, 2023 |  |
Direct Auto Lease [Member] |  |  |
Operating Leased Assets [Line Items] |  |  |
Lease expiration date | Dec. 31, 2029 |  |
Nodak Insurance Lease [Member] |  |  |
Operating Leased Assets [Line Items] |  |  |
Lease expiration date | Dec. 31, 2024 |  |

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- Definition Date which lease or group of leases is set to expire, in YYYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_LeaseExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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

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- Definition Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123406913&loc=d3e41499-112717 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | srt_CounterpartyNameAxis=NODK_PrimeorLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_CounterpartyNameAxis=NODK_DirectAutoLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CounterpartyNameAxis=NODK_NodakInsuranceLeaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |