1. Condensed Consolidated Financial Statements (Policies)	9 Months Ended
Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The condensed consolidated balance sheet as of September 30, 2019, the condensed consolidated statements of operations for the three and nine months ended September 30, 2019 and 2018, and the condensed consolidated statements of cash flows for the nine months ended September 30, 2019 and 2018 have been prepared by BK Technologies Corporation (the “Company” or “we”), and are unaudited. On March 28, 2019, BK Technologies, Inc., the predecessor of BK Technologies Corporation, implemented a holding company reorganization, which resulted in BK Technologies Corporation becoming the direct parent company of, and the successor issuer to, BK Technologies, Inc. For the purpose of this report, references to “we” or the “Company” or its management or business at any period prior to the holding company reorganization (March 28, 2019) refer to those of BK Technologies, Inc. as the predecessor company and its subsidiaries and thereafter to those of BK Technologies Corporation and its subsidiaries, except as otherwise specified or to the extent the context otherwise indicates. In the opinion of management, all adjustments, which include normal, recurring adjustments, necessary for a fair presentation have been made. All intercompany transactions and balances have been eliminated in consolidation. The condensed consolidated balance sheet at December 31, 2018 has been derived from the Company’s audited consolidated financial statements at that date. Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted. It is suggested that these condensed consolidated financial statements be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018, as filed with the Securities and Exchange Commission (“SEC”). The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the operating results for a full year.
Revenue Recognition	Effective January 1, 2018, the Company adopted Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers,” and the additional related ASUs (“ASC 606”), which replaced existing revenue guidance and outlines a single set of comprehensive principles for recognizing revenue under U.S. GAAP. The Company elected the modified retrospective method upon adoption, with no impact to the opening retained earnings or revenue reported. These standards provide guidance on recognizing revenue, including a five-step method to determine when revenue recognition is appropriate: Step 1: Identify the contract with the customer; Step 2: Identify the performance obligations in the contract; Step 3: Determine the transaction price; Step 4: Allocate the transaction price to the performance obligations; and Step 5: Recognize revenue as the Company satisfies a performance obligation. ASC 606 provides that revenue is recognized when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. We generally satisfy performance obligations upon shipment of the product or service to the customer. This is consistent with the time in which the customer obtains control of the product or service. For extended warranties, sales revenue associated with the warranty is deferred at the time of sale and later recognized on a straight-line basis over the extended warranty period. Some contracts include installation services, which are completed in a short period of time, and the revenue is recognized when the installation is complete.
Principles of Consolidation	The Company consolidates entities in which it has a controlling financial interest. The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a variable interest entity (“VIE”) or a voting interest entity. VIEs are entities in which (i) the total equity investment at risk is not sufficient to enable the entity to finance its activities independently, or (ii) the at-risk equity holders do not have the normal characteristics of a controlling financial interest. A controlling financial interest in a VIE is present when an enterprise has one or more variable interests that have both (i) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance, and (ii) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The enterprise with a controlling financial interest is the primary beneficiary and consolidates the VIE. Voting interest entities lack one or more of the characteristics of a VIE. The usual condition for a controlling financial interest is ownership of a majority voting interest for a corporation or a majority of kick-out or participating rights for a limited partnership. When the Company does not have a controlling financial interest in an entity but exerts significant influence over the entity’s operating and financial policies (generally defined as owning a voting or economic interest of between 20% to 50%), the Company’s investment is accounted for under the equity method of accounting. If the Company does not have a controlling financial interest in, or exert significant influence over, an entity, the Company accounts for its investment at fair value, if the fair value option was elected, or at cost. The Company has an investment in 1347 Property Insurance Holdings, Inc., made through FGI 1347 Holdings, LP, a consolidated VIE.
Fair Value	The Company’s financial instruments consist of cash and cash equivalents, trade accounts receivable, investment in securities, accounts payable, accrued expenses and other liabilities. As of September 30, 2019 and December 31, 2018, the carrying amount of cash and cash equivalents, trade accounts receivable, accounts payable, accrued expenses and other liabilities approximated their respective fair value due to the short-term nature and maturity of these instruments. The Company uses observable market data or assumptions (Level 1 inputs, as defined in accounting guidance) that it believes market participants would use in pricing the investment in securities. There were no transfers of investment in securities between Level 1 and Level 2 during the three and nine months ended September 30, 2019 or 2018.
Available-For-Sale Securities	On January 1, 2018, the Company adopted ASU 2016-01 “Financial Instruments,” which amended the guidance in U.S. GAAP regarding the classification and measurement of financial instruments. Changes to the prior guidance primarily affected the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, the ASU clarified guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. Upon its adoption, the Company applied the amendments by means of a cumulative-effect adjustment to the balance sheet at the beginning of the first reporting period in which the guidance was effective. On January 1, 2018, the Company recognized approximately $4,300 of net unrealized gain in its accumulated deficit balance. During the first quarter of 2018, the Company sold 1,317,503 shares of Iteris, Inc. (Nasdaq: ITI), which cost $2,402, for approximately $8,335 of proceeds and reported a loss on the sales of approximately $849.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02 “Leases,” which amended leasing guidance by requiring companies to recognize a right-of-use (“ROU”) asset and a lease liability for all operating and capital (finance) leases with lease terms greater than twelve months. The lease liability is equal to the present value of lease payments. The lease asset is based on the lease liability, subject to adjustment, such as for initial direct costs. For income statement purposes, leases continue to be classified as operating or capital (finance), with lease expense in both cases calculated substantially the same as under the prior leasing guidance. The updated guidance became effective for interim and annual periods beginning after December 15, 2018. The Company adopted the new guidance on January 1, 2019. Adoption resulted in the recognition of ROU assets and lease liabilities on the condensed consolidated financial statements. Based on the Company’s lease portfolio as of September 30, 2019, which consisted solely of operating leases, the Company recognized approximately $2,558 of ROU assets and lease liabilities on its consolidated financial statements. Refer to Note 12 (Leases) for further details on leases. In August 2018, the SEC adopted the final rule under SEC Release No. 33-10532, “Disclosure Update and Simplification,” amending certain disclosure requirements that were redundant, duplicative, overlapping, outdated or superseded. In addition, the amendments expanded the disclosure requirements on the analysis of stockholders’ equity for interim financial statements. Under the amendments, an analysis of changes in each caption of stockholders’ equity presented in the balance sheet must be provided in a note or separate statement. The analysis should present a reconciliation of the beginning balance to the ending balance of each period for which a statement of comprehensive income is required to be filed. This final rule became effective for all filings made on or after November 5, 2018. Given the effective date and the proximity to most filers’ quarterly reports, the SEC permitted deferring the presentation of interim changes in stockholders’ equity in Forms 10-Q until the quarter that began after the date of adoption, November 5, 2018. The Company adopted this rule in the first quarter of 2019, and its adoption did not have a material impact on its consolidated financial statements. Note 7 (Stockholders’ Equity) of the Notes to these condensed consolidated financial statements summarizes changes in stockholders’ equity. Recent Accounting Pronouncements The Company does not discuss recent pronouncements that are not anticipated to have an impact on or are unrelated to its financial condition, results of operations, cash flows or disclosures.

1. Condensed Consolidated Financial Statements (Policies)

9 Months Ended

Sep. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The condensed consolidated balance sheet as of September 30, 2019, the condensed consolidated statements of operations for the three and nine months ended September 30, 2019 and 2018, and the condensed consolidated statements of cash flows for the nine months ended September 30, 2019 and 2018 have been prepared by BK Technologies Corporation (the “Company” or “we”), and are unaudited. On March 28, 2019, BK Technologies, Inc., the predecessor of BK Technologies Corporation, implemented a holding company reorganization, which resulted in BK Technologies Corporation becoming the direct parent company of, and the successor issuer to, BK Technologies, Inc. For the purpose of this report, references to “we” or the “Company” or its management or business at any period prior to the holding company reorganization (March 28, 2019) refer to those of BK Technologies, Inc. as the predecessor company and its subsidiaries and thereafter to those of BK Technologies Corporation and its subsidiaries, except as otherwise specified or to the extent the context otherwise indicates. In the opinion of management, all adjustments, which include normal, recurring adjustments, necessary for a fair presentation have been made. All intercompany transactions and balances have been eliminated in consolidation. The condensed consolidated balance sheet at December 31, 2018 has been derived from the Company’s audited consolidated financial statements at that date.

Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted. It is suggested that these condensed consolidated financial statements be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018, as filed with the Securities and Exchange Commission (“SEC”). The results of operations for the three and nine months ended September 30, 2019 are not necessarily indicative of the operating results for a full year.

Revenue Recognition

Effective January 1, 2018, the Company adopted Accounting Standards Update (“ASU”) No. 2014-09, “Revenue from Contracts with Customers,” and the additional related ASUs (“ASC 606”), which replaced existing revenue guidance and outlines a single set of comprehensive principles for recognizing revenue under U.S. GAAP. The Company elected the modified retrospective method upon adoption, with no impact to the opening retained earnings or revenue reported. These standards provide guidance on recognizing revenue, including a five-step method to determine when revenue recognition is appropriate:

Step 1: Identify the contract with the customer;

Step 2: Identify the performance obligations in the contract;

Step 3: Determine the transaction price;

Step 4: Allocate the transaction price to the performance obligations; and

Step 5: Recognize revenue as the Company satisfies a performance obligation.

ASC 606 provides that revenue is recognized when control of the promised goods or services is transferred to customers at an amount that reflects the consideration to which the entity expects to be entitled to in exchange for those goods or services. We generally satisfy performance obligations upon shipment of the product or service to the customer. This is consistent with the time in which the customer obtains control of the product or service. For extended warranties, sales revenue associated with the warranty is deferred at the time of sale and later recognized on a straight-line basis over the extended warranty period. Some contracts include installation services, which are completed in a short period of time, and the revenue is recognized when the installation is complete.

Principles of Consolidation

The Company consolidates entities in which it has a controlling financial interest. The Company determines whether it has a controlling financial interest in an entity by first evaluating whether the entity is a variable interest entity (“VIE”) or a voting interest entity.

VIEs are entities in which (i) the total equity investment at risk is not sufficient to enable the entity to finance its activities independently, or (ii) the at-risk equity holders do not have the normal characteristics of a controlling financial interest. A controlling financial interest in a VIE is present when an enterprise has one or more variable interests that have both (i) the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance, and (ii) the obligation to absorb losses of the VIE or the right to receive benefits from the VIE that could potentially be significant to the VIE. The enterprise with a controlling financial interest is the primary beneficiary and consolidates the VIE.

Voting interest entities lack one or more of the characteristics of a VIE. The usual condition for a controlling financial interest is ownership of a majority voting interest for a corporation or a majority of kick-out or participating rights for a limited partnership.

When the Company does not have a controlling financial interest in an entity but exerts significant influence over the entity’s operating and financial policies (generally defined as owning a voting or economic interest of between 20% to 50%), the Company’s investment is accounted for under the equity method of accounting. If the Company does not have a controlling financial interest in, or exert significant influence over, an entity, the Company accounts for its investment at fair value, if the fair value option was elected, or at cost.

The Company has an investment in 1347 Property Insurance Holdings, Inc., made through FGI 1347 Holdings, LP, a consolidated VIE.

Fair Value

The Company’s financial instruments consist of cash and cash equivalents, trade accounts receivable, investment in securities, accounts payable, accrued expenses and other liabilities. As of September 30, 2019 and December 31, 2018, the carrying amount of cash and cash equivalents, trade accounts receivable, accounts payable, accrued expenses and other liabilities approximated their respective fair value due to the short-term nature and maturity of these instruments.

The Company uses observable market data or assumptions (Level 1 inputs, as defined in accounting guidance) that it believes market participants would use in pricing the investment in securities. There were no transfers of investment in securities between Level 1 and Level 2 during the three and nine months ended September 30, 2019 or 2018.

Available-For-Sale Securities

On January 1, 2018, the Company adopted ASU 2016-01 “Financial Instruments,” which amended the guidance in U.S. GAAP regarding the classification and measurement of financial instruments. Changes to the prior guidance primarily affected the accounting for equity investments, financial liabilities under the fair value option, and the presentation and disclosure requirements for financial instruments. In addition, the ASU clarified guidance related to the valuation allowance assessment when recognizing deferred tax assets resulting from unrealized losses on available-for-sale debt securities. Upon its adoption, the Company applied the amendments by means of a cumulative-effect adjustment to the balance sheet at the beginning of the first reporting period in which the guidance was effective. On January 1, 2018, the Company recognized approximately $4,300 of net unrealized gain in its accumulated deficit balance. During the first quarter of 2018, the Company sold 1,317,503 shares of Iteris, Inc. (Nasdaq: ITI), which cost $2,402, for approximately $8,335 of proceeds and reported a loss on the sales of approximately $849.

Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In February 2016, the FASB issued ASU 2016-02 “Leases,” which amended leasing guidance by requiring companies to recognize a right-of-use (“ROU”) asset and a lease liability for all operating and capital (finance) leases with lease terms greater than twelve months. The lease liability is equal to the present value of lease payments. The lease asset is based on the lease liability, subject to adjustment, such as for initial direct costs. For income statement purposes, leases continue to be classified as operating or capital (finance), with lease expense in both cases calculated substantially the same as under the prior leasing guidance. The updated guidance became effective for interim and annual periods beginning after December 15, 2018. The Company adopted the new guidance on January 1, 2019. Adoption resulted in the recognition of ROU assets and lease liabilities on the condensed consolidated financial statements. Based on the Company’s lease portfolio as of September 30, 2019, which consisted solely of operating leases, the Company recognized approximately $2,558 of ROU assets and lease liabilities on its consolidated financial statements. Refer to Note 12 (Leases) for further details on leases.

In August 2018, the SEC adopted the final rule under SEC Release No. 33-10532, “Disclosure Update and Simplification,” amending certain disclosure requirements that were redundant, duplicative, overlapping, outdated or superseded. In addition, the amendments expanded the disclosure requirements on the analysis of stockholders’ equity for interim financial statements. Under the amendments, an analysis of changes in each caption of stockholders’ equity presented in the balance sheet must be provided in a note or separate statement. The analysis should present a reconciliation of the beginning balance to the ending balance of each period for which a statement of comprehensive income is required to be filed. This final rule became effective for all filings made on or after November 5, 2018. Given the effective date and the proximity to most filers’ quarterly reports, the SEC permitted deferring the presentation of interim changes in stockholders’ equity in Forms 10-Q until the quarter that began after the date of adoption, November 5, 2018. The Company adopted this rule in the first quarter of 2019, and its adoption did not have a material impact on its consolidated financial statements. Note 7 (Stockholders’ Equity) of the Notes to these condensed consolidated financial statements summarizes changes in stockholders’ equity.

Recent Accounting Pronouncements

The Company does not discuss recent pronouncements that are not anticipated to have an impact on or are unrelated to its financial condition, results of operations, cash flows or disclosures.