Note 1 - Summary of Operations and Basis of Presentation	12 Months Ended
Dec. 31, 2023
Notes to Financial Statements
Basis of Presentation and Significant Accounting Policies [Text Block]	1. Summary of Operations and Basis of Presentation Summary of Operations Palomar Holdings, Inc. (the “Company”) is a Delaware incorporated insurance holding company that was founded in 2014. The Company has several wholly owned subsidiaries including an Oregon domiciled insurance company, Palomar Specialty Insurance Company (“PSIC”), a Bermuda based reinsurance company, Palomar Specialty Reinsurance Company Bermuda Ltd. (“PSRE”), an Arizona domiciled surplus lines insurance company, Palomar Excess and Surplus Insurance Company (“PESIC”), a California domiciled property and casualty insurance agency, Palomar Insurance Agency, DBA Palomar General Insurance Agency (“PGIA”), and a Delaware incorporated management company, Palomar Underwriters Exchange Organization, Inc. ("PUEO"). PSIC is a property and casualty insurance company domiciled in the state of Oregon. The Company’s core focus is on the residential and commercial earthquake markets in earthquake-exposed states such as California, Oregon, Washington, and states with exposure to the New Madrid Seismic Zone. The Company also offers products tailored to broader geographic regions and perils, including Fronting, Inland Marine, Hawaii Hurricane, Casualty, and Flood products. PSIC is licensed to underwrite insurance on an admitted basis in 42 states in the United States, as of December 31, 2023, mainly through managing general insurance agencies, wholesale brokers, and independent agents. PSRE is a Bermuda captive reinsurance company that has historically been used to reinsure certain premiums on a quota share basis exclusively for PSIC. PESIC is an Arizona domiciled surplus lines insurance company. PESIC is licensed in Arizona to write surplus lines policies across all the Company’s lines of business and was formed and began writing policies in 2020. PGIA is a property and casualty general insurance agency for PSIC, PESIC, and unaffiliated insurance carriers. As a general insurance agency, PGIA assists in developing insurance products, underwriting insurance policies, and receiving and disbursing funds from premium and loss transactions under contracts on behalf of insurance companies. PGIA earns commissions from the product development, marketing, and servicing of the insurance companies’ programs. PGIA also earns fee income from policyholder transactions. PUEO is a Delaware corporation that was formed in 2023 and provides management services to Laulima Exchange ("Laulima"), a Hawaii domiciled reciprocal exchange, as its attorney-in-fact. Laulima was formed in 2023 and is comprised of an unincorporated association of Hawaii homeowners ("subscribers") that agree to insure one another. The Company operates as an insurance holding company system and is subject to the insurance holding company laws of the States of Oregon and Arizona, the states in which PSIC and PESIC are domiciled. The Company is also commercially domiciled in California, making it subject to California insurance holding company laws. These statutes require that each insurance company in the system register with the insurance department of its state of domicile and furnish information concerning the operations of companies within the holding company system that may materially affect the operations, management or financial condition of the insurers within the system and domiciled in that state. The Company has a single operating segment, the property and casualty insurance business. The Company's chief operating decision maker ("CODM") is the Chief Executive Officer. While the Company’s CODM reviews the revenue streams attributable to individual products, operations are managed, resources are allocated, and financial performance is evaluated on a consolidated basis. Basis of Presentation The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and include the accounts of the Company and its wholly-owned subsidiaries. The consolidated financial statements also include the accounts of Laulima, as Laulima is a variable interest entity ("VIE") for which the Company is the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect amounts reported in the consolidated financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein. All revisions to accounting estimates are recognized in the period in which the estimates are revised. Significant estimates reflected in the Company’s consolidated financial statements include, but are not limited to, reserves for losses and loss adjustment expenses, reinsurance recoverables on unpaid losses, and the fair values of investments.

Note 1 - Summary of Operations and Basis of Presentation

12 Months Ended

Dec. 31, 2023

Basis of Presentation and Significant Accounting Policies [Text Block]

1. Summary of Operations and Basis of Presentation

Summary of Operations

Palomar Holdings, Inc. (the “Company”) is a Delaware incorporated insurance holding company that was founded in 2014. The Company has several wholly owned subsidiaries including an Oregon domiciled insurance company, Palomar Specialty Insurance Company (“PSIC”), a Bermuda based reinsurance company, Palomar Specialty Reinsurance Company Bermuda Ltd. (“PSRE”), an Arizona domiciled surplus lines insurance company, Palomar Excess and Surplus Insurance Company (“PESIC”), a California domiciled property and casualty insurance agency, Palomar Insurance Agency, DBA Palomar General Insurance Agency (“PGIA”), and a Delaware incorporated management company, Palomar Underwriters Exchange Organization, Inc. ("PUEO").

PSIC is a property and casualty insurance company domiciled in the state of Oregon. The Company’s core focus is on the residential and commercial earthquake markets in earthquake-exposed states such as California, Oregon, Washington, and states with exposure to the New Madrid Seismic Zone. The Company also offers products tailored to broader geographic regions and perils, including Fronting, Inland Marine, Hawaii Hurricane, Casualty, and Flood products. PSIC is licensed to underwrite insurance on an admitted basis in 42 states in the United States, as of December 31, 2023, mainly through managing general insurance agencies, wholesale brokers, and independent agents.

PSRE is a Bermuda captive reinsurance company that has historically been used to reinsure certain premiums on a quota share basis exclusively for PSIC.

PESIC is an Arizona domiciled surplus lines insurance company. PESIC is licensed in Arizona to write surplus lines policies across all the Company’s lines of business and was formed and began writing policies in 2020.

PGIA is a property and casualty general insurance agency for PSIC, PESIC, and unaffiliated insurance carriers. As a general insurance agency, PGIA assists in developing insurance products, underwriting insurance policies, and receiving and disbursing funds from premium and loss transactions under contracts on behalf of insurance companies. PGIA earns commissions from the product development, marketing, and servicing of the insurance companies’ programs. PGIA also earns fee income from policyholder transactions.

PUEO is a Delaware corporation that was formed in 2023 and provides management services to Laulima Exchange ("Laulima"), a Hawaii domiciled reciprocal exchange, as its attorney-in-fact. Laulima was formed in 2023 and is comprised of an unincorporated association of Hawaii homeowners ("subscribers") that agree to insure one another.

The Company operates as an insurance holding company system and is subject to the insurance holding company laws of the States of Oregon and Arizona, the states in which PSIC and PESIC are domiciled. The Company is also commercially domiciled in California, making it subject to California insurance holding company laws. These statutes require that each insurance company in the system register with the insurance department of its state of domicile and furnish information concerning the operations of companies within the holding company system that may materially affect the operations, management or financial condition of the insurers within the system and domiciled in that state.

The Company has a single operating segment, the property and casualty insurance business. The Company's chief operating decision maker ("CODM") is the Chief Executive Officer. While the Company’s CODM reviews the revenue streams attributable to individual products, operations are managed, resources are allocated, and financial performance is evaluated on a consolidated basis.

Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) and include the accounts of the Company and its wholly-owned subsidiaries. The consolidated financial statements also include the accounts of Laulima, as Laulima is a variable interest entity ("VIE") for which the Company is the primary beneficiary. All intercompany balances and transactions have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect amounts reported in the consolidated financial statements and accompanying notes. Such estimates and assumptions could change in the future as more information becomes known, which could impact the amounts reported and disclosed herein. All revisions to accounting estimates are recognized in the period in which the estimates are revised. Significant estimates reflected in the Company’s consolidated financial statements include, but are not limited to, reserves for losses and loss adjustment expenses, reinsurance recoverables on unpaid losses, and the fair values of investments.