Basis of Presentation (Policies)	9 Months Ended
Sep. 30, 2022
Basis of Presentation [Abstract]
Subsequent Event	Subsequent Event On October 7, 2022 the Company consummated the sale of substantially all of its excess and surplus lines operations to Core Specialty Insurance Holdings, Inc. (“Core Specialty”), a specialty property and casualty insurer, for $40.0 million cash consideration, plus an estimated $19.2 million consideration for the acquisition costs associated with certain net unearned premium reserves. The transaction was comprised of all or portions of nine business units within the Company’s former Specialty Commercial Segment, certain related assets and liabilities, and the immediate transition to Core Specialty of approximately 200 employees who produce and support these lines of businesses. Core Specialty’s acquisition and assumption of the Company’s excess and surplus lines of business and the related assets and liabilities was made effective as of September 30, 2022.
Use of Estimates in the Preparation of the Financial Statements	Use of Estimates in the Preparation of the Financial Statements Our preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect our reported amounts of assets and liabilities and our disclosure of contingent assets and liabilities at the date of our consolidated financial statements, as well as our reported amounts of revenues and expenses during the reporting period. Refer to “Critical Accounting Estimates and Judgments” under Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2021 for information on accounting policies that we consider critical in preparing our consolidated financial statements. Actual results could differ materially from those estimates.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Fair value estimates are made at a point in time based on relevant market data as well as the best information available about the financial instruments. Fair value estimates for financial instruments for which no or limited observable market data is available are based on judgments regarding current economic conditions, credit and interest rate risk. These estimates involve significant uncertainties and judgments and cannot be determined with precision. As a result, such calculated fair value estimates may not be realizable in a current sale or immediate settlement of the instrument. In addition, changes in the underlying assumptions used in the fair value measurement technique, including discount rate and estimates of future cash flows, could significantly affect these fair value estimates. Cash and Cash Equivalents: The carrying amounts reported in the consolidated balance sheets for these instruments approximate their fair values. Restricted Cash: The carrying amount for restricted cash reported in the consolidated balance sheets approximates the fair value. Senior Unsecured Notes Due 2029: Our senior unsecured notes payable due in 2029 had a carrying value of $49.3 million and a fair value of $43.2 million as of September 30, 2022. Our senior unsecured notes payable would be included in Level 3 of the fair value hierarchy if they were reported at fair value. Subordinated Debt Securities: Our trust preferred securities had a carrying value of $56.0 million and a fair value of $35.6 million as of September 30, 2022. Our trust preferred securities would be included in Level 3 of the fair value hierarchy if they were reported at fair value. For accounts receivable, reinsurance balances, premiums receivable, federal income tax recoverable and other assets, the carrying amounts are held at net realizable value which approximates fair value because of the short maturity of such financial instruments.
Variable Interest Entities	Variable Interest Entities On June 21, 2005, we formed Hallmark Statutory Trust I (“Trust I”), an unconsolidated trust subsidiary, for the sole purpose of issuing $30.0 million in trust preferred securities. Trust I used the proceeds from the sale of these securities and our initial capital contribution to purchase $30.9 million of subordinated debt securities from Hallmark. The debt securities are the sole assets of Trust I, and the payments under the debt securities are the sole revenues of Trust I. On August 23, 2007, we formed Hallmark Statutory Trust II (“Trust II”), an unconsolidated trust subsidiary, for the sole purpose of issuing $25.0 million in trust preferred securities. Trust II used the proceeds from the sale of these securities and our initial capital contribution to purchase $25.8 million of subordinated debt securities from Hallmark. The debt securities are the sole assets of Trust II, and the payments under the debt securities are the sole revenues of Trust II. We evaluate on an ongoing basis our investments in Trust I and Trust II (collectively the “Trusts”) and have determined that we do not have a variable interest in the Trusts. Therefore, the Trusts are not included in our consolidated financial statements.
Income Taxes	Income Taxes We file a consolidated federal income tax return. Deferred federal income taxes reflect the future tax consequences of differences between the tax basis of assets and liabilities and their financial reporting amounts at each year end. We account for income taxes under the asset and liability method, which requires the recognition of deferred taxes for temporary differences between the financial statement and tax return basis of assets and liabilities. Deferred tax assets generally represent items that can be used as a tax deduction or credit in future years for which we have already recorded the tax benefit in our income statement. Deferred tax liabilities generally represent tax expense recognized in our financial statements for which payment has been deferred or expenditures for which we have already taken a deduction in our tax return but have not yet been recognized in our financial statements. Under GAAP, we are required to evaluate the recoverability of our deferred tax assets and establish a valuation allowance if necessary to reduce our deferred tax assets to an amount that is more likely than not to be realized. Significant judgment is required in determining whether valuation allowances should be established, as well as the amount of such allowances. We establish or adjust valuation allowances for deferred tax assets when we estimate that it is more likely than not that future taxable income will be insufficient to realize the value of the deferred tax assets. We evaluate all significant available positive and negative evidence as part of our analysis. Negative evidence includes the existence of losses in recent years. Positive evidence includes the forecast of future taxable income and tax-planning strategies that would result in the realization of deferred tax assets. The underlying assumptions we use in forecasting future taxable income require significant judgment and take into account our recent performance. The ultimate realization of deferred tax assets depends on the generation of future taxable income during the periods in which temporary differences are deductible or creditable. If actual experience differs from these estimates and assumptions, the recognized deferred tax asset value may not be fully realized, resulting in an increase to income tax expense in our results of operations. As of September 30, 2022, the Company maintained a full valuation allowance of $30.4 million against its deferred tax assets because we determined that it is more likely than not that these assets will not be recoverable. If, in the future, we determine we can support the recoverability of all or a portion of the deferred tax assets under the guidance, the tax benefits relating to any reversal of the valuation allowance on deferred tax assets will be accounted for as a reduction of income tax expense and result in an increase in equity. Changes in tax laws and rates may affect recorded deferred tax assets and liabilities and our effective tax rate in the future. The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. There were no uncertain tax positions at September 30, 2022.
Recently Issued Accounting Pronouncements	Recently Issued Accounting Pronouncements In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform ("ASU 2020-04"). ASU 2020-04 provides optional guidance for a limited period of time to ease potential accounting impact associated with transitioning away from reference rates that are expected to be discontinued, such as the London Interbank Offered Rate ("LIBOR"). The amendments in this ASU apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued. The amendments in ASU 2020-04 could be adopted as of March 12, 2020 and are effective through December 31, 2024. We do not currently have any contracts that have been changed to a new reference rate and do not expect the adoption of this guidance to have a material effect on the Company’s results of operations, financial position or liquidity. In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments” (Topic 326). ASU 2016-13 requires organizations to estimate credit losses on certain types of financial instruments, including receivables and available-for-sale debt securities, by introducing an approach based on expected losses. The expected loss approach will require entities to incorporate considerations of historical information, current information and reasonable and supportable forecasts. As a smaller reporting company, ASU 2016-13 is effective for fiscal years of the Company beginning after December 15, 2022, including interim periods within those fiscal years. ASU 2016-13 requires a modified retrospective transition method and early adoption is permitted. We are currently evaluating the impact that the adoption of this standard will have on our financial results and disclosures.

Basis of Presentation (Policies)

9 Months Ended

Sep. 30, 2022

On October 7, 2022 the Company consummated the sale of substantially all of its excess and surplus lines operations to Core Specialty Insurance Holdings, Inc. (“Core Specialty”), a specialty property and casualty insurer, for $40.0 million cash consideration, plus an estimated $19.2 million consideration for the acquisition costs associated with certain net unearned premium reserves. The transaction was comprised of all or portions of nine business units within the Company’s former Specialty Commercial Segment, certain related assets and liabilities, and the immediate transition to Core Specialty of approximately 200 employees who produce and support these lines of businesses. Core Specialty’s acquisition and assumption of the Company’s excess and surplus lines of business and the related assets and liabilities was made effective as of September 30, 2022.

Use of Estimates in the Preparation of the Financial Statements

Our preparation of financial statements in conformity with GAAP requires us to make estimates and assumptions that affect our reported amounts of assets and liabilities and our disclosure of contingent assets and liabilities at the date of our consolidated financial statements, as well as our reported amounts of revenues and expenses during the reporting period. Refer to “Critical Accounting Estimates and Judgments” under Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2021 for information on accounting policies that we consider critical in preparing our consolidated financial statements. Actual results could differ materially from those estimates.

Fair Value of Financial Instruments

Fair value estimates are made at a point in time based on relevant market data as well as the best information available about the financial instruments. Fair value estimates for financial instruments for which no or limited observable market data is available are based on judgments regarding current economic conditions, credit and interest rate risk. These estimates involve significant uncertainties and judgments and cannot be determined with precision. As a result, such calculated fair value estimates may not be realizable in a current sale or immediate settlement of the instrument. In addition, changes in the underlying assumptions used in the fair value measurement technique, including discount rate and estimates of future cash flows, could significantly affect these fair value estimates.

Cash and Cash Equivalents: The carrying amounts reported in the consolidated balance sheets for these instruments approximate their fair values.

Restricted Cash: The carrying amount for restricted cash reported in the consolidated balance sheets approximates the fair value.

Senior Unsecured Notes Due 2029: Our senior unsecured notes payable due in 2029 had a carrying value of $49.3 million and a fair value of $43.2 million as of September 30, 2022. Our senior unsecured notes payable would be included in Level 3 of the fair value hierarchy if they were reported at fair value.

Subordinated Debt Securities: Our trust preferred securities had a carrying value of $56.0 million and a fair value of $35.6 million as of September 30, 2022. Our trust preferred securities would be included in Level 3 of the fair value hierarchy if they were reported at fair value.

For accounts receivable, reinsurance balances, premiums receivable, federal income tax recoverable and other assets, the carrying amounts are held at net realizable value which approximates fair value because of the short maturity of such financial instruments.

Variable Interest Entities

On June 21, 2005, we formed Hallmark Statutory Trust I (“Trust I”), an unconsolidated trust subsidiary, for the sole purpose of issuing $30.0 million in trust preferred securities. Trust I used the proceeds from the sale of these securities and our initial capital contribution to purchase $30.9 million of subordinated debt securities from Hallmark. The debt securities are the sole assets of Trust I, and the payments under the debt securities are the sole revenues of Trust I.

On August 23, 2007, we formed Hallmark Statutory Trust II (“Trust II”), an unconsolidated trust subsidiary, for the sole purpose of issuing $25.0 million in trust preferred securities. Trust II used the proceeds from the sale of these securities and our initial capital contribution to purchase $25.8 million of subordinated debt securities from Hallmark. The debt securities are the sole assets of Trust II, and the payments under the debt securities are the sole revenues of Trust II.

We evaluate on an ongoing basis our investments in Trust I and Trust II (collectively the “Trusts”) and have determined that we do not have a variable interest in the Trusts. Therefore, the Trusts are not included in our consolidated financial statements.

Income Taxes

We file a consolidated federal income tax return. Deferred federal income taxes reflect the future tax consequences of differences between the tax basis of assets and liabilities and their financial reporting amounts at each year end. We account for income taxes under the asset and liability method, which requires the recognition of deferred taxes for temporary differences between the financial statement and tax return basis of assets and liabilities. Deferred tax assets generally represent items that can be used as a tax deduction or credit in future years for which we have already recorded the tax benefit in our income statement. Deferred tax liabilities generally represent tax expense recognized in our financial statements for which payment has been deferred or expenditures for which we have already taken a deduction in our tax return but have not yet been recognized in our financial statements.

Under GAAP, we are required to evaluate the recoverability of our deferred tax assets and establish a valuation allowance if necessary to reduce our deferred tax assets to an amount that is more likely than not to be realized. Significant judgment is required in determining whether valuation allowances should be established, as well as the amount of such allowances. We establish or adjust valuation allowances for deferred tax assets when we estimate that it is more likely than not that future taxable income will be insufficient to realize the value of the deferred tax assets. We evaluate all significant available positive and negative evidence as part of our analysis. Negative evidence includes the existence of losses in recent years. Positive evidence includes the forecast of future taxable income and tax-planning strategies that would result in the realization of deferred tax assets. The underlying assumptions we use in forecasting future taxable income require significant judgment and take into account our recent performance. The ultimate realization of deferred tax assets depends on the generation of future taxable income during the periods in which temporary differences are deductible or creditable. If actual experience differs from these estimates and assumptions, the recognized deferred tax asset value may not be fully realized, resulting in an increase to income tax expense in our results of operations.

As of September 30, 2022, the Company maintained a full valuation allowance of $30.4 million against its deferred tax assets because we determined that it is more likely than not that these assets will not be recoverable. If, in the future, we determine we can support the recoverability of all or a portion of the deferred tax assets under the guidance, the tax benefits relating to any reversal of the valuation allowance on deferred tax assets will be accounted for as a reduction of income tax expense and result in an increase in equity. Changes in tax laws and rates may affect recorded deferred tax assets and liabilities and our effective tax rate in the future.

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. There were no uncertain tax positions at September 30, 2022.

Recently Issued Accounting Pronouncements

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform ("ASU 2020-04"). ASU 2020-04 provides optional guidance for a limited period of time to ease potential accounting impact associated with transitioning away from reference rates that are expected to be discontinued, such as the London Interbank Offered Rate ("LIBOR"). The amendments in this ASU apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued. The amendments in ASU 2020-04 could be adopted as of March 12, 2020 and are effective through December 31, 2024. We do not currently have any contracts that have been changed to a new reference rate and do not expect the adoption of this guidance to have a material effect on the Company’s results of operations, financial position or liquidity.

In June 2016, the FASB issued ASU 2016-13, “Measurement of Credit Losses on Financial Instruments” (Topic 326). ASU 2016-13 requires organizations to estimate credit losses on certain types of financial instruments, including receivables and available-for-sale debt securities, by introducing an approach based on expected losses. The expected loss approach will require entities to incorporate considerations of historical information, current information and reasonable and supportable forecasts. As a smaller reporting company, ASU 2016-13 is effective for fiscal years of the Company beginning after December 15, 2022, including interim periods within those fiscal years. ASU 2016-13 requires a modified retrospective transition method and early adoption is permitted. We are currently evaluating the impact that the adoption of this standard will have on our financial results and disclosures.

- Definition

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.

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