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v3.19.1

6. Property and Casualty Insurance Activity (Details 1) - USD ($) | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Insurance [Abstract] |  |
Balance at beginning of period | $ 56,197,106 | $ 48,799,622
Less reinsurance recoverables | (15,671,247) | (16,748,908)
Net balance, beginning of period | 40,525,859 | 32,050,714
Incurred related to: |  |
Current year | 24,655,975 | 17,367,560
Prior years | 4,478,249 | (101,230)
Total incurred | 29,134,224 | 17,266,330
Paid related to: |  |
Current year | 7,731,086 | 5,971,788
Prior years | 8,405,440 | 6,495,154
Total paid | 16,136,526 | 12,466,942
Net balance at end of period | 53,523,557 | 36,850,102
Add reinsurance recoverables | 15,586,714 | 19,422,011
Balance at end of period | $ 69,110,271 | $ 56,272,113

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

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

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

X
- Definition Custom Element. + References No definition available. + Details
Name: | KINS_IncurredRelatedTo
Namespace Prefix: | KINS_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

X
- Definition Custom Element. + References No definition available. + Details
Name: | KINS_PaidRelatedTo
Namespace Prefix: | KINS_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

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

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

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

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

X
- Definition The increase (decrease) in property and casualty insurance liabilities balances during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
Name: | us-gaap_IncreaseDecreaseInPropertyAndCasualtyInsuranceLiabilities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InsuranceAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration