XML 49 R35.htm IDEA: XBRL DOCUMENT v3.21.2

Investments (Details 4) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Amortized cost	$ 9,166,983	$ 7,368,815
Estimated fair value	9,699,504	8,194,824
Less Than One Year [Member]
Amortized cost	1,394,102	0
Estimated fair value	1,420,414	0
One To Five Years [Member]
Amortized cost	1,205,500	2,598,193
Estimated fair value	1,301,973	2,777,936
Five To Ten Years [Member]
Amortized cost	1,511,072	1,502,603
Estimated fair value	1,686,289	1,727,316
More Than 10 Years [Member]
Amortized cost	5,056,309	3,268,019
Estimated fair value	$ 5,290,828	$ 3,689,572

X

- References

No definition available.

+ Details

Name:	kins_AmortizedCostHeldToMaturitySecurities
Namespace Prefix:	kins_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

Name:	kins_FairValueHeldToMaturitySecurities
Namespace Prefix:	kins_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=kins_LessThanOneYearMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=kins_OneToFiveYearsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=kins_FiveToTenYearsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancialInstrumentAxis=kins_MoreThan10YearsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: