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11. Property and Casualty Insurance Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Premiums Written
Direct	$ 171,214,091	$ 146,716,468
Assumed	939	1,004
Ceded	(45,635,899)	(26,923,679)
Net	125,579,131	119,793,793
Changes In Unearned Premiums
Direct	(11,350,864)	(13,388,535)
Assumed	(243)	4,067
Ceded	13,395,418	(2,994,610)
Net	2,044,311	(16,379,078)
Premiums Earned
Direct	159,863,227	133,327,933
Assumed	696	5,071
Ceded	(32,240,481)	(29,918,289)
Net	$ 127,623,442	$ 103,414,715

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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:

X

- Details

Name:	us-gaap_ReinsurancePolicyTypeAxis=KINS_PremiumsEarnedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: