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v3.21.2

Property and Casualty Insurance Activity (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Premiums Written |  |  |  |
Direct | $ 44,615,644 | $ 42,650,477 | $ 82,744,761 | $ 79,347,406
Assumed | 0 | 0 | 0 | 0
Ceded | (7,301,365) | (14,559,998) | (14,630,872) | (28,066,253)
Net | 37,314,279 | 28,090,479 | 68,113,889 | 51,281,153
Changes In Unearned Premiums |  |  |  |
Direct | (1,852,772) | (527,742) | 1,936,706 | 5,376,958
Assumed | 0 | 0 | 0 | 0
Ceded | (25,081) | (925,881) | (24,951) | (3,079,805)
Net | (1,877,853) | (1,453,623) | 1,911,755 | 2,297,153
Premiums Earned |  |  |  |
Direct | 42,762,872 | 42,122,735 | 84,681,467 | 84,724,364
Assumed | 0 | 0 | 0 | 0
Ceded | (7,326,446) | (15,485,879) | (14,655,823) | (31,146,058)
Net | $ 35,436,426 | $ 26,636,856 | $ 70,025,644 | $ 53,578,306

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- Definition Custom Element. + References No definition available. + Details
Name: | kins_AssumedPropertyAndCasultyInsuranceActivity
Namespace Prefix: | kins_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | kins_CededPropertyAndCasultyInsuranceActivity
Namespace Prefix: | kins_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | kins_DirectPropertyAndCasultyInsuranceActivity
Namespace Prefix: | kins_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Custom Element. + References No definition available. + Details
Name: | kins_NetPropertyAndCasultyInsuranceActivity
Namespace Prefix: | kins_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | us-gaap_ReinsurancePolicyTypeAxis=kins_PremiumsWrittenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ReinsurancePolicyTypeAxis=kins_ChangesInUnearnedPremiumsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_ReinsurancePolicyTypeAxis=kins_PremiumsEarnedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |