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11. Property and Casualty Insurance Activity (Details Narrative) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Insurance [Abstract] |  |
Advance premiums | $ 3,191,512 | $ 2,107,629
Incurred Losses and Loss Adjustment Expenses are net of reinsurance recoveries under reinsurance contracts | $ 12,769,015 | $ 14,482,712

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

X
- Definition Excess (deficiency) of net proceeds received over the net carrying value of a certain, bundled grouping of insurance policies. + References No definition available. + Details
Name: | us-gaap_GainLossOnSaleOfInsuranceBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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