SIGNIFICANT ACCOUNTING POLICIES	3 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES Principles of Consolidation and Basis of Presentation The accompanying consolidated financial statements include the accounts of The National Security Group, Inc. (the Company) and its wholly-owned subsidiaries: National Security Insurance Company (NSIC), National Security Fire and Casualty Company (NSFC) and NATSCO, Inc. (NATSCO). NSFC includes a wholly-owned subsidiary, Omega One Insurance Company (Omega). The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP). In the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair presentation of the consolidated financial statements have been included. All significant intercompany transactions and accounts have been eliminated in the consolidated financial statements. The financial information presented herein should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2018, which includes information and disclosures not presented herein. Use of Estimates The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Among the more significant estimates included in these consolidated financial statements are reserves for future life insurance policy benefits, liabilities for losses and loss adjustment expenses, reinsurance recoverable associated with loss and loss adjustment expense liabilities, deferred policy acquisition costs, deferred income tax assets and liabilities, assessments of other-than-temporary impairments on investments and accruals for contingencies. Actual results could differ from the estimates used in preparing these consolidated financial statements. Earnings Per Share Earnings per share of common stock is based on the weighted average number of shares outstanding during each year. The adjusted weighted average shares outstanding were 2,527,136 at March 31, 2019 and 2,522,312 at March 31, 2018. The Company did not have any dilutive securities as of March 31, 2019 and 2018. Reclassifications Certain 2018 amounts have been reclassified from the prior year consolidated financial statements to conform to the 2019 presentation. Concentration of Credit Risk The Company maintains cash balances which are generally held in non-interest bearing demand deposit accounts subject to FDIC insured limits of $250,000 per entity. At March 31, 2019, the net amount exceeding FDIC insured limits was $3,251,000 at two financial institutions. The Company has not experienced any losses in such accounts. Management of the Company reviews financial information of financial institutions on a quarterly basis and believes the Company is not exposed to any significant credit risk on cash and cash equivalents. Policy receivables are reported at unpaid balances. Policy receivables are generally offset by associated unearned premium liabilities and are not subject to significant credit risk. Receivables from agents, less provision for credit losses, are composed of balances due from independent agents. At March 31, 2019, the single largest balance due from one agent totaled $573,000. Reinsurance contracts do not relieve the Company of its obligations to policyholders. A failure of a reinsurer to meet its obligation could result in losses to the insurance subsidiaries. Allowances for losses on reinsurance recoverables are established if amounts are believed to be uncollectible. At March 31, 2019 and December 31, 2018, no amounts were deemed uncollectible. The Company, at least annually, evaluates the financial condition of all reinsurers and evaluates any potential concentrations of credit risk. At March 31, 2019, management does not believe the Company is exposed to any significant credit risk related to its reinsurance program. Accounting Changes Not Yet Adopted Changes to the Disclosure Requirements for Fair Value Measurement In August 2018, the FASB issued guidance to that removes, modifies and adds to the disclosure requirements related to fair value measurements. The guidance removes the requirements to disclose the amount and reasons for transfers between Level 1 and Level 2 assets, the policy for timing and transfers between levels and the valuation process for Level 3 fair value measurements. The guidance modifies disclosure requirements for investments in certain entities that calculate net asset value and clarifies the purpose of the measurement uncertainty disclosure. The guidance adds requirements to disclose changes in unrealized gains or losses included in other comprehensive income for recurring Level 3 fair value measurements and to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. The guidance is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years. The Company does not expect the adoption to have a material impact on its financial position or results of operations. Targeted Improvements to the Accounting for Long-Duration Contracts In August 2018, the FASB issued guidance to improve the existing recognition, measurement, presentation and disclosure requirements for long-duration contracts issued by an insurance entity. The guidance improves timeliness of recognizing changes in the liability for future policy benefits and modifies the rate used to discount future cash flows. The guidance will simplify and improve accounting for certain market-based options or guarantees associated with deposit type contracts and simplify the amortization of deferred policy acquisition costs. The guidance also introduces certain financial statement presentation requirements, as well as significant additional quantitative and qualitative disclosures. The guidance is effective for fiscal years beginning after December 15, 2020 and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this new guidance. Due to the nature and extent of the changes required to the Company’s life insurance operations, the adoption of this standard is expected to have a material impact on the consolidated financial statements. Contingent Put and Call Options in Debt Instruments In March 2016, the FASB issued guidance that clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those years. The Company does not expect the adoption to have a material impact on its financial position or results of operations. Financial Instruments - Credit Losses In June 2016, the FASB issued guidance that replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The FASB released additional guidance in November 2018 that provides scope clarification. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those years. The Company does not expect the adoption to have a material impact on its financial position or results of operations. Recently Adopted Accounting Standards Improvements to Nonemployee Share-Based Payment Accounting In June 2018, the FASB issued guidance to simplify the accounting for nonemployee share-based payment awards. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. The Company does not make any material share-based payments. The Company adopted this guidance on January 1, 2019. The adoption of this guidance did not have a material impact on its financial position or results of operations. Derivatives and Hedging In August 2017, the FASB issued guidance that amends and simplifies hedge accounting guidance in order to enable entities to better portray the economic results of their risk management activities. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those periods. Early adoption is permitted. The Company adopted this guidance on January 1, 2019 and had two swaps designated as cash flow hedges. One expired March 15, 2019 and one expires March 15, 2020. The adoption of this guidance did not have a significant impact on our financial position, results of operations, cash flows or related disclosures. Leases In February 2016, the FASB issued guidance that requires lessees (for capital and operating leases) to recognize the lease liability and right-of-use (ROU) asset at the commencement date of the lease. Additional transition guidance was issued in 2018 and 2019. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those years. The Company adopted this guidance on January 1, 2019 and recorded a ROU asset of $299,000 and corresponding lease liability of $306,000. The ROU asset and operating lease liability are included in other assets and other liabilities, respectively, on our Condensed Consolidated Balance Sheets as of January 1, 2019. The Company elected the package of practical expedients permitted under the guidance, which allowed the Company to account for existing leases under their current classification, as well as omit any new costs classified as initial direct costs, under the new guidance. Based on this election, the Company kept existing agreements as operating leases. The Company also elected the practical expedient allowing an accounting policy election by class of underlying asset, to account for separate lease and nonlease components as a single lease component. The Company leases automobiles and some office equipment. These leases are not considered material. Adoption of this guidance had no material impact on the Company's financial position, results of operations, cash flows or related disclosures.

SIGNIFICANT ACCOUNTING POLICIES AND PRACTICES

Principles of Consolidation and Basis of Presentation

The accompanying consolidated financial statements include the accounts of The National Security Group, Inc. (the Company) and its wholly-owned subsidiaries: National Security Insurance Company (NSIC), National Security Fire and Casualty Company (NSFC) and NATSCO, Inc. (NATSCO). NSFC includes a wholly-owned subsidiary, Omega One Insurance Company (Omega). The accompanying consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (GAAP). In the opinion of management, all adjustments, consisting of normal and recurring items, necessary for the fair presentation of the consolidated financial statements have been included. All significant intercompany transactions and accounts have been eliminated in the consolidated financial statements. The financial information presented herein should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2018, which includes information and disclosures not presented herein.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Among the more significant estimates included in these consolidated financial statements are reserves for future life insurance policy benefits, liabilities for losses and loss adjustment expenses, reinsurance recoverable associated with loss and loss adjustment expense liabilities, deferred policy acquisition costs, deferred income tax assets and liabilities, assessments of other-than-temporary impairments on investments and accruals for contingencies. Actual results could differ from the estimates used in preparing these consolidated financial statements.

Earnings Per Share

Earnings per share of common stock is based on the weighted average number of shares outstanding during each year. The adjusted weighted average shares outstanding were 2,527,136 at March 31, 2019 and 2,522,312 at March 31, 2018. The Company did not have any dilutive securities as of March 31, 2019 and 2018.

Reclassifications

Certain 2018 amounts have been reclassified from the prior year consolidated financial statements to conform to the 2019 presentation.

Concentration of Credit Risk

The Company maintains cash balances which are generally held in non-interest bearing demand deposit accounts subject to FDIC insured limits of $250,000 per entity. At March 31, 2019, the net amount exceeding FDIC insured limits was $3,251,000 at two financial institutions. The Company has not experienced any losses in such accounts. Management of the Company reviews financial information of financial institutions on a quarterly basis and believes the Company is not exposed to any significant credit risk on cash and cash equivalents.

Policy receivables are reported at unpaid balances. Policy receivables are generally offset by associated unearned premium liabilities and are not subject to significant credit risk. Receivables from agents, less provision for credit losses, are composed of balances due from independent agents. At March 31, 2019, the single largest balance due from one agent totaled $573,000.

Reinsurance contracts do not relieve the Company of its obligations to policyholders. A failure of a reinsurer to meet its obligation could result in losses to the insurance subsidiaries. Allowances for losses on reinsurance recoverables are established if amounts are believed to be uncollectible. At March 31, 2019 and December 31, 2018, no amounts were deemed uncollectible. The Company, at least annually, evaluates the financial condition of all reinsurers and evaluates any potential concentrations of credit risk. At March 31, 2019, management does not believe the Company is exposed to any significant credit risk related to its reinsurance program.

Accounting Changes Not Yet Adopted

Changes to the Disclosure Requirements for Fair Value Measurement

In August 2018, the FASB issued guidance to that removes, modifies and adds to the disclosure requirements related to fair value measurements. The guidance removes the requirements to disclose the amount and reasons for transfers between Level 1 and Level 2 assets, the policy for timing and transfers between levels and the valuation process for Level 3 fair value measurements. The guidance modifies disclosure requirements for investments in certain entities that calculate net asset value and clarifies the purpose of the measurement uncertainty disclosure. The guidance adds requirements to disclose changes in unrealized gains or losses included in other comprehensive income for recurring Level 3 fair value measurements and to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. The guidance is effective for fiscal years beginning after December 15, 2019 and interim periods within those fiscal years. The Company does not expect the adoption to have a material impact on its financial position or results of operations.

Targeted Improvements to the Accounting for Long-Duration Contracts

In August 2018, the FASB issued guidance to improve the existing recognition, measurement, presentation and disclosure requirements for long-duration contracts issued by an insurance entity. The guidance improves timeliness of recognizing changes in the liability for future policy benefits and modifies the rate used to discount future cash flows. The guidance will simplify and improve accounting for certain market-based options or guarantees associated with deposit type contracts and simplify the amortization of deferred policy acquisition costs. The guidance also introduces certain financial statement presentation requirements, as well as significant additional quantitative and qualitative disclosures. The guidance is effective for fiscal years beginning after December 15, 2020 and interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the impact of this new guidance. Due to the nature and extent of the changes required to the Company’s life insurance operations, the adoption of this standard is expected to have a material impact on the consolidated financial statements.

Contingent Put and Call Options in Debt Instruments

In March 2016, the FASB issued guidance that clarifies the requirements for assessing whether contingent call (put) options that can accelerate the payment of principal on debt instruments are clearly and closely related to their debt hosts. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those years. The Company does not expect the adoption to have a material impact on its financial position or results of operations.

Financial Instruments - Credit Losses

In June 2016, the FASB issued guidance that replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The FASB released additional guidance in November 2018 that provides scope clarification. This guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those years. The Company does not expect the adoption to have a material impact on its financial position or results of operations.

Recently Adopted Accounting Standards

Improvements to Nonemployee Share-Based Payment Accounting

In June 2018, the FASB issued guidance to simplify the accounting for nonemployee share-based payment awards. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. The Company does not make any material share-based payments. The Company adopted this guidance on January 1, 2019. The adoption of this guidance did not have a material impact on its financial position or results of operations.

Derivatives and Hedging

In August 2017, the FASB issued guidance that amends and simplifies hedge accounting guidance in order to enable entities to better portray the economic results of their risk management activities. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those periods. Early adoption is permitted. The Company adopted this guidance on January 1, 2019 and had two swaps designated as cash flow hedges. One expired March 15, 2019 and one expires March 15, 2020. The adoption of this guidance did not have a significant impact on our financial position, results of operations, cash flows or related disclosures.

Leases

In February 2016, the FASB issued guidance that requires lessees (for capital and operating leases) to recognize the lease liability and right-of-use (ROU) asset at the commencement date of the lease. Additional transition guidance was issued in 2018 and 2019. This guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those years.

The Company adopted this guidance on January 1, 2019 and recorded a ROU asset of $299,000 and corresponding lease liability of $306,000. The ROU asset and operating lease liability are included in other assets and other liabilities, respectively, on our Condensed Consolidated Balance Sheets as of January 1, 2019. The Company elected the package of practical expedients permitted under the guidance, which allowed the Company to account for existing leases under their current classification, as well as omit any new costs classified as initial direct costs, under the new guidance. Based on this election, the Company kept existing agreements as operating leases. The Company also elected the practical expedient allowing an accounting policy election by class of underlying asset, to account for separate lease and nonlease components as a single lease component.

The Company leases automobiles and some office equipment. These leases are not considered material. Adoption of this guidance had no material impact on the Company's financial position, results of operations, cash flows or related disclosures.