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10. Property and Casulty Insurance Activity (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Premiums Written    
Direct $ 76,255,426KINS_DirectPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
$ 60,449,077KINS_DirectPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
Assumed 48,856KINS_AssumedPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
45,746KINS_AssumedPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
Ceded (33,009,420)KINS_CededPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
(35,656,060)KINS_CededPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
Net 43,294,862KINS_NetPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
24,838,763KINS_NetPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsWrittenMember
Changes In Unearned Premiums    
Direct (8,119,029)KINS_DirectPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
(6,341,750)KINS_DirectPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
Assumed (3,398)KINS_AssumedPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
18,499KINS_AssumedPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
Ceded (2,543,951)KINS_CededPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
3,709,655KINS_CededPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
Net (10,666,378)KINS_NetPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
(2,613,596)KINS_NetPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_ChangesInUnearnedPremiumsMember
Premiums Earned    
Direct 68,136,397KINS_DirectPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
54,107,327KINS_DirectPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
Assumed 45,458KINS_AssumedPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
64,245KINS_AssumedPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
Ceded (35,553,371)KINS_CededPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
(31,946,405)KINS_CededPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
Net $ 32,628,484KINS_NetPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember
$ 22,225,167KINS_NetPropertyAndCasultyInsuranceActivity
/ us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis
= KINS_PremiumsEarnedMember