1. Nature of Business	12 Months Ended
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
1. Nature of Business	Kingstone Companies, Inc. (referred to herein as "Kingstone" or the “Company”), through its wholly owned subsidiary, Kingstone Insurance Company (“KICO”), underwrites property and casualty insurance and individuals exclusively through retail and wholesale agents and brokers. KICO is a licensed insurance company in the States of New York, New Jersey, Rhode Island, Massachusetts, Pennsylvania, Connecticut, Maine and New Hampshire. KICO is currently offering its property and casualty insurance products in New York, New Jersey, Rhode Island, Massachusetts, and Connecticut. Although New Jersey, Rhode Island, Massachusetts and Connecticut continue to be growing markets for the Company, 85.0% and 93.7% of KICO’s direct written premiums for the years ended December 31, 2019 and 2018, respectively, came from the New York policies. Kingstone, through its subsidiary, Cosi Agency, Inc. (“Cosi”), a multi-state licensed general agency, accesses alternate forms of distribution outside of the independent agent and broker network, through which KICO currently distributes its various products. Kingstone (through Cosi) now has the opportunity to partner with name-brand carriers and access nationwide insurance agencies.

The entire disclosure for the business description and basis of presentation concepts. Business description describes the nature and type of organization including but not limited to organizational structure as may be applicable to holding companies, parent and subsidiary relationships, business divisions, business units, business segments, affiliates and information about significant ownership of the reporting entity. Basis of presentation describes the underlying basis used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-URI http://asc.fasb.org/topic&trid=2122369

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-URI http://asc.fasb.org/topic&trid=2122149

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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