Summary of significant accounting policies	12 Months Ended
Dec. 31, 2021
Summary of significant accounting policies
1. Summary Of Significant Accounting Policies	1. Summary of Significant Accounting Policies Description of Business BK Technologies Corporation (collectively with its subsidiaries, the “Company”) is a holding company. The primary business of its wholly-owned operating subsidiary, BK Technologies, Inc., is the designing, manufacturing and marketing of wireless communications equipment primarily consisting of two-way land mobile radios and related products, which are sold in two primary markets: (1) the government and public safety market, and (2) the business and industrial market. The Company has only one reportable business segment. 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 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. Principles of Consolidation The accounts of the Company have been included in the accompanying consolidated financial statements. All significant intercompany balances and transactions have been eliminated in 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 FG Financial Group, Inc. (formerly 1347 Property Insurance Holdings, Inc.), made through FGI 1347 Holdings, LP, a consolidated VIE (see Note 6). Inventories Inventories are stated at the lower of cost (determined by the average cost method) or net realizable value. Freight costs are classified as a component of cost of products in the accompanying consolidated statements of operations. The allowance for slow-moving, excess, and obsolete inventory is used to state the Company’s inventories at the lower of cost or net realizable value. Because the amount of inventory that will actually be recouped through sales cannot be known with certainty at any particular time, the Company relies on past sales experience, future sales forecasts, and its strategic business plans. Generally, in analyzing inventory levels, inventory is classified as having been used or unused during the past year. The Company then establishes an allowance based upon several factors, including, but not limited to, business forecasts, inventory quantities and historic usage profile. Supplemental to the aforementioned analysis, specific inventory items are reviewed individually by management. Based on the review, considering business levels, future prospects, new products and technology changes, management, using its business judgment, may adjust the valuation of specific inventory items to reflect an accurate valuation estimate. Management also performs a determination of net realizable value for all finished goods with a selling price below cost. For all such items, the inventory is valued at not more than the selling price less cost, if any, to sell. Property, Plant and Equipment Property, plant and equipment is carried at cost less accumulated depreciation. Expenditures for maintenance, repairs and minor renewals are expensed as incurred. When assets are retired or otherwise disposed of, the related cost and accumulated depreciation are removed from the respective accounts and the resulting gain or loss is reflected in operations for the period. Depreciation and amortization are generally computed on the straight-line method using lives of 3 to 10 years for machinery and equipment and 5 to 8 years for leasehold improvements. Impairment of Long-Lived Assets Management regularly reviews long-lived assets and intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the assets exceeds their fair value, which considers the discounted future net cash flows. No long-lived assets were considered impaired at December 31, 2021 and 2020. Cash Equivalents The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents. Allowance for Doubtful Accounts The Company records an allowance for doubtful accounts based on specifically identified amounts that the Company believes to be uncollectible. The Company also records an additional allowance based on certain percentages of the Company’s aged receivables, which are determined based on historical experience and the Company’s assessment of the general financial conditions affecting the Company’s customer base. If the Company’s actual collections experience changes, revisions to the Company’s allowance may be required. After all attempts to collect a receivable have failed, the receivable is written off against the allowance. Based on the information available, management believes the allowance for doubtful accounts as of December 31, 2021 and 2020 is adequate. Revenue Recognition The Company recognizes revenues in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers” and the additional related ASUs (“ASC 606”), which replaced previous revenue guidance and outlines a single set of comprehensive principles for recognizing revenue under accounting principles generally accepted in the United States of America (“GAAP”). 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 sales 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. The Company generally satisfies 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. Customary payment terms are granted to customers, based on credit evaluations. Currently, the Company does not have any contracts where revenue is recognized, but the customer payment is contingent on a future event. The Company periodically reviews its revenue recognition procedures to assure that such procedures are in accordance with GAAP. Surcharges collected on certain sales to government customers and remitted to governmental agencies are not included in revenues or in costs and expenses. Income Taxes The Company accounts for income taxes using the asset and liability method specified by GAAP. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply in the period in which the deferred tax asset or liability is expected to be realized. The effect of changes in net deferred tax assets and liabilities is recognized on the Company’s consolidated balance sheets and consolidated statements of operations in the period in which the change is recognized. Valuation allowances are provided to the extent that impairment of tax assets is more likely than not. In determining whether a tax asset is realizable, the Company considers, among other things, estimates of future earnings based on information currently available, current and anticipated customers, contracts and new product introductions, as well as recent operating results and certain tax planning strategies. If the Company fails to achieve the future results anticipated in the calculation and valuation of net deferred tax assets, the Company may be required to increase the valuation allowance related to its deferred tax assets in the future. Concentration of Credit Risk The Company performs periodic credit evaluations of its customers’ financial condition and generally does not require collateral. At December 31, 2021 and 2020, accounts receivable from governmental customers were approximately $1,500 and $2,102, respectively. Generally, receivables are due within 30 days. Credit losses relating to customers have been consistently within management’s expectations. The Company primarily maintains cash balances at one financial institution. Accounts are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to $250. From time to time, the Company has had cash in financial institutions in excess of federally insured limits. As of December 31, 2021, the Company had cash and cash equivalents in excess of FDIC limits of $10,401. Manufacturing and Raw Materials The Company relies upon a limited number of manufacturers to produce its products and on a limited number of component suppliers. Some of these manufacturers and suppliers are in other countries. Approximately 32.4% of the Company’s material, subassembly and product procurements in 2021 were sourced internationally, of which approximately 31.0% were sourced from seven suppliers. For 2020, approximately 53.0% of the Company’s material, subassembly and product procurements were sourced internationally, of which approximately 48.0% were sourced from three suppliers. Purchase orders denominated in U.S. dollars are placed with these suppliers from time to time and there are no guaranteed supply arrangements or commitments. 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 at the date of the consolidated financial statements and the reported amounts of sales and expenses during the reporting period. Significant estimates include accounts receivable allowances, inventory obsolescence allowance, warranty allowance, and income tax accruals. Actual results could differ from those estimates. Fair Value of Financial Instruments The Company’s financial instruments consist of cash and cash equivalents, trade accounts receivable, investment in securities, accounts payable, accrued expenses, notes payable, and other liabilities. As of December 31, 2021 and 2020, the carrying amount of cash and cash equivalents, trade accounts receivable, accounts payable, accrued expenses, notes payable, 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 assumptions (Level 1 inputs, as defined in accounting guidance) that it believes market participants would use in pricing investment in securities. Shipping and Handling Costs Shipping and handling costs are classified as a part of cost of products in the accompanying consolidated statements of operations. Amounts billed to a customer, if any, for shipping and handling are reported as revenue. Advertising and Promotion Costs The cost for advertising and promotion is expensed as incurred. Advertising and promotion expenses are classified as part of selling, general and administrative (“SG&A”) expenses in the accompanying consolidated statements of operations. For the years ended December 31, 2021 and 2020, such expenses totaled $243 and $214, respectively. Engineering, Research and Development Costs Included in SG&A expenses for the years ended December 31, 2021 and 2020 are engineering, research and development costs of $8,203 and $7,869, respectively. Share-Based Compensation The Company accounts for share-based arrangements in accordance with GAAP, which requires a public entity to measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award (with limited exceptions). That cost will be recognized over the period during which the employee is required to provide service in exchange for the award requisite service period (usually the vesting period). No compensation cost is recognized for equity instruments for which employees do not render the requisite service. Restricted Stock Units On December 17, 2021, upon the resignation of former director John Struble, the company, at the direction of the Board of Directors, accelerated the vesting of Mr. Struble’s unvested restricted stock units granted September 6, 2018, September 6, 2019, August 24, 2020, and July 30, 2021, and issued 34,264 shares of common stock to Mr. Struble. On July 30, 2021, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $50 per award (resulting in total aggregate grant-date fair value of $250), which will vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units shall vest in full as of the director’s last date of service as a director of the Company. On March 4, 2021, upon the resignation of former director Lewis Johnson, the Company, at the direction of the Board of Directors, accelerated the vesting of Mr. Johnson’s unvested restricted stock units granted September 6, 2018, September 6, 2019, and August 24, 2020, and issued 24,505 shares of common stock to Mr. Johnson. On August 24, 2020, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $40 per award (resulting in total aggregate grant-date fair value of $240), which will vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units shall vest in full as of the director’s last date of service as a director of the Company. On April 24, 2020, upon the resignation of former director Ryan Turner, the Company, at the direction of the Board of Directors, accelerated the vesting of Mr. Turner’s unvested restricted stock units granted September 6, 2019 and issued 10,389 shares of common stock. On September 6, 2019, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $40 per award (resulting in total aggregate grant-date fair value of $280), which will vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units shall vest in full as of the director’s last date of service as a director of the Company. On September 6, 2018, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $20 per award (resulting in total aggregate grant-date fair value of $140), which vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units vest in full as of the director’s last date of service as a director of the Company. On September 6, 2019, which was the first anniversary of the grant date, the first tranche of the September 2018 restricted stock units vested. On April 24, 2020, upon the resignation of Mr. Turner, the Company accelerated the vesting of Mr. Turner’s unvested restricted stock units granted September 6, 2018 and issued 4,050 shares of common stock. Earnings (Loss) Per Share Earnings (loss) per share amounts are computed and presented for all periods in accordance with GAAP. Comprehensive Income (loss) Comprehensive income (loss) was equal to net income (loss) for the years ended December 31, 2021 and 2020. Product Warranty The Company offers two-year standard warranties to its customers, depending on the specific product and terms of the customer purchase agreement. The Company’s typical warranties require it to repair and replace defective products during the warranty period at no cost to the customer. At the time the product revenue is recognized, the Company records a liability for estimated costs under its warranties. The costs are estimated based on historical experience. The Company periodically assesses the adequacy of its recorded liability for product warranties and adjusts the amount as necessary. Recently Adopted Accounting Pronouncements In August 2018, the FASB issued ASU 2018-13, “Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement,” which modifies the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, including the removal of certain disclosure requirements. The amendments in the ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company adopted this guidance as of January 1, 2020, and the adoption did not have an impact on its consolidated financial statements. 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. Change in Accounting Principle As disclosed in Note 2, on July 1, 2021, the Company changed its accounting to burden the material at the time of purchase receipts. Prior to July 1, 2021, the Company applied the material burden at the time the inventory was issued to work in progress. This change resulted in a net increase of approximately $ 1,300 in inventory and a net decrease of $ 1,300 in accumulated deficit as of July 1, 2021. The accounting change did not have a material effect on the loss from operations, net loss, or earnings per share for year ended December 31, 2021.

Summary of significant accounting policies

12 Months Ended

Dec. 31, 2021

Summary of significant accounting policies

1. Summary Of Significant Accounting Policies

1. Summary of Significant Accounting Policies

Description of Business

BK Technologies Corporation (collectively with its subsidiaries, the “Company”) is a holding company. The primary business of its wholly-owned operating subsidiary, BK Technologies, Inc., is the designing, manufacturing and marketing of wireless communications equipment primarily consisting of two-way land mobile radios and related products, which are sold in two primary markets: (1) the government and public safety market, and (2) the business and industrial market. The Company has only one reportable business segment.

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 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.

Principles of Consolidation

The accounts of the Company have been included in the accompanying consolidated financial statements. All significant intercompany balances and transactions have been eliminated in 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 FG Financial Group, Inc. (formerly 1347 Property Insurance Holdings, Inc.), made through FGI 1347 Holdings, LP, a consolidated VIE (see Note 6).

Inventories

Inventories are stated at the lower of cost (determined by the average cost method) or net realizable value. Freight costs are classified as a component of cost of products in the accompanying consolidated statements of operations.

The allowance for slow-moving, excess, and obsolete inventory is used to state the Company’s inventories at the lower of cost or net realizable value. Because the amount of inventory that will actually be recouped through sales cannot be known with certainty at any particular time, the Company relies on past sales experience, future sales forecasts, and its strategic business plans. Generally, in analyzing inventory levels, inventory is classified as having been used or unused during the past year. The Company then establishes an allowance based upon several factors, including, but not limited to, business forecasts, inventory quantities and historic usage profile.

Supplemental to the aforementioned analysis, specific inventory items are reviewed individually by management. Based on the review, considering business levels, future prospects, new products and technology changes, management, using its business judgment, may adjust the valuation of specific inventory items to reflect an accurate valuation estimate. Management also performs a determination of net realizable value for all finished goods with a selling price below cost. For all such items, the inventory is valued at not more than the selling price less cost, if any, to sell.

Property, Plant and Equipment

Property, plant and equipment is carried at cost less accumulated depreciation. Expenditures for maintenance, repairs and minor renewals are expensed as incurred. When assets are retired or otherwise disposed of, the related cost and accumulated depreciation are removed from the respective accounts and the resulting gain or loss is reflected in operations for the period.

Depreciation and amortization are generally computed on the straight-line method using lives of 3 to 10 years for machinery and equipment and 5 to 8 years for leasehold improvements.

Impairment of Long-Lived Assets

Management regularly reviews long-lived assets and intangible assets for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future undiscounted net cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the assets exceeds their fair value, which considers the discounted future net cash flows. No long-lived assets were considered impaired at December 31, 2021 and 2020.

Cash Equivalents

The Company considers all highly liquid investments with an original maturity of three months or less to be cash equivalents.

Allowance for Doubtful Accounts

The Company records an allowance for doubtful accounts based on specifically identified amounts that the Company believes to be uncollectible. The Company also records an additional allowance based on certain percentages of the Company’s aged receivables, which are determined based on historical experience and the Company’s assessment of the general financial conditions affecting the Company’s customer base. If the Company’s actual collections experience changes, revisions to the Company’s allowance may be required. After all attempts to collect a receivable have failed, the receivable is written off against the allowance. Based on the information available, management believes the allowance for doubtful accounts as of December 31, 2021 and 2020 is adequate.

Revenue Recognition

The Company recognizes revenues in accordance with the Financial Accounting Standards Board (“FASB”) Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers” and the additional related ASUs (“ASC 606”), which replaced previous revenue guidance and outlines a single set of comprehensive principles for recognizing revenue under accounting principles generally accepted in the United States of America (“GAAP”). 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 sales 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. The Company generally satisfies 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. Customary payment terms are granted to customers, based on credit evaluations. Currently, the Company does not have any contracts where revenue is recognized, but the customer payment is contingent on a future event.

The Company periodically reviews its revenue recognition procedures to assure that such procedures are in accordance with GAAP. Surcharges collected on certain sales to government customers and remitted to governmental agencies are not included in revenues or in costs and expenses.

Income Taxes

The Company accounts for income taxes using the asset and liability method specified by GAAP. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using the enacted tax rates expected to apply in the period in which the deferred tax asset or liability is expected to be realized. The effect of changes in net deferred tax assets and liabilities is recognized on the Company’s consolidated balance sheets and consolidated statements of operations in the period in which the change is recognized. Valuation allowances are provided to the extent that impairment of tax assets is more likely than not. In determining whether a tax asset is realizable, the Company considers, among other things, estimates of future earnings based on information currently available, current and anticipated customers, contracts and new product introductions, as well as recent operating results and certain tax planning strategies. If the Company fails to achieve the future results anticipated in the calculation and valuation of net deferred tax assets, the Company may be required to increase the valuation allowance related to its deferred tax assets in the future.

Concentration of Credit Risk

The Company performs periodic credit evaluations of its customers’ financial condition and generally does not require collateral. At December 31, 2021 and 2020, accounts receivable from governmental customers were approximately $1,500 and $2,102, respectively. Generally, receivables are due within 30 days. Credit losses relating to customers have been consistently within management’s expectations.

The Company primarily maintains cash balances at one financial institution. Accounts are insured by the Federal Deposit Insurance Corporation (“FDIC”) up to $250. From time to time, the Company has had cash in financial institutions in excess of federally insured limits. As of December 31, 2021, the Company had cash and cash equivalents in excess of FDIC limits of $10,401.

Manufacturing and Raw Materials

The Company relies upon a limited number of manufacturers to produce its products and on a limited number of component suppliers. Some of these manufacturers and suppliers are in other countries. Approximately 32.4% of the Company’s material, subassembly and product procurements in 2021 were sourced internationally, of which approximately 31.0% were sourced from seven suppliers. For 2020, approximately 53.0% of the Company’s material, subassembly and product procurements were sourced internationally, of which approximately 48.0% were sourced from three suppliers. Purchase orders denominated in U.S. dollars are placed with these suppliers from time to time and there are no guaranteed supply arrangements or commitments.

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 at the date of the consolidated financial statements and the reported amounts of sales and expenses during the reporting period. Significant estimates include accounts receivable allowances, inventory obsolescence allowance, warranty allowance, and income tax accruals. Actual results could differ from those estimates.

Fair Value of Financial Instruments

The Company’s financial instruments consist of cash and cash equivalents, trade accounts receivable, investment in securities, accounts payable, accrued expenses, notes payable, and other liabilities. As of December 31, 2021 and 2020, the carrying amount of cash and cash equivalents, trade accounts receivable, accounts payable, accrued expenses, notes payable, 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 assumptions (Level 1 inputs, as defined in accounting guidance) that it believes market participants would use in pricing investment in securities.

Shipping and Handling Costs

Shipping and handling costs are classified as a part of cost of products in the accompanying consolidated statements of operations. Amounts billed to a customer, if any, for shipping and handling are reported as revenue.

Advertising and Promotion Costs

The cost for advertising and promotion is expensed as incurred. Advertising and promotion expenses are classified as part of selling, general and administrative (“SG&A”) expenses in the accompanying consolidated statements of operations. For the years ended December 31, 2021 and 2020, such expenses totaled $243 and $214, respectively.

Engineering, Research and Development Costs

Included in SG&A expenses for the years ended December 31, 2021 and 2020 are engineering, research and development costs of $8,203 and $7,869, respectively.

Share-Based Compensation

The Company accounts for share-based arrangements in accordance with GAAP, which requires a public entity to measure the cost of employee services received in exchange for an award of equity instruments based on the grant-date fair value of the award (with limited exceptions). That cost will be recognized over the period during which the employee is required to provide service in exchange for the award requisite service period (usually the vesting period). No compensation cost is recognized for equity instruments for which employees do not render the requisite service.

Restricted Stock Units

On December 17, 2021, upon the resignation of former director John Struble, the company, at the direction of the Board of Directors, accelerated the vesting of Mr. Struble’s unvested restricted stock units granted September 6, 2018, September 6, 2019, August 24, 2020, and July 30, 2021, and issued 34,264 shares of common stock to Mr. Struble.

On July 30, 2021, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $50 per award (resulting in total aggregate grant-date fair value of $250), which will vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units shall vest in full as of the director’s last date of service as a director of the Company.

On March 4, 2021, upon the resignation of former director Lewis Johnson, the Company, at the direction of the Board of Directors, accelerated the vesting of Mr. Johnson’s unvested restricted stock units granted September 6, 2018, September 6, 2019, and August 24, 2020, and issued 24,505 shares of common stock to Mr. Johnson.

On August 24, 2020, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $40 per award (resulting in total aggregate grant-date fair value of $240), which will vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units shall vest in full as of the director’s last date of service as a director of the Company.

On April 24, 2020, upon the resignation of former director Ryan Turner, the Company, at the direction of the Board of Directors, accelerated the vesting of Mr. Turner’s unvested restricted stock units granted September 6, 2019 and issued 10,389 shares of common stock.

On September 6, 2019, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $40 per award (resulting in total aggregate grant-date fair value of $280), which will vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units shall vest in full as of the director’s last date of service as a director of the Company.

On September 6, 2018, the Company granted to each non-employee director restricted stock units with a grant-date fair value of $20 per award (resulting in total aggregate grant-date fair value of $140), which vest in five equal, annual installments beginning with the first anniversary of the grant date, subject to the director’s continued service through such date, provided that, if the director makes himself available and consents to be nominated by the Company for continued service as a director, but is not nominated for the Board for election by stockholders, other than for good reason, as determined by the Board in its discretion, then the restricted stock units vest in full as of the director’s last date of service as a director of the Company. On September 6, 2019, which was the first anniversary of the grant date, the first tranche of the September 2018 restricted stock units vested. On April 24, 2020, upon the resignation of Mr. Turner, the Company accelerated the vesting of Mr. Turner’s unvested restricted stock units granted September 6, 2018 and issued 4,050 shares of common stock.

Earnings (Loss) Per Share

Earnings (loss) per share amounts are computed and presented for all periods in accordance with GAAP.

Comprehensive Income (loss)

Comprehensive income (loss) was equal to net income (loss) for the years ended December 31, 2021 and 2020.

Product Warranty

The Company offers two-year standard warranties to its customers, depending on the specific product and terms of the customer purchase agreement. The Company’s typical warranties require it to repair and replace defective products during the warranty period at no cost to the customer. At the time the product revenue is recognized, the Company records a liability for estimated costs under its warranties. The costs are estimated based on historical experience. The Company periodically assesses the adequacy of its recorded liability for product warranties and adjusts the amount as necessary.

Recently Adopted Accounting Pronouncements

In August 2018, the FASB issued ASU 2018-13, “Disclosure Framework-Changes to the Disclosure Requirements for Fair Value Measurement,” which modifies the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, including the removal of certain disclosure requirements. The amendments in the ASU are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The Company adopted this guidance as of January 1, 2020, and the adoption did not have an impact on its consolidated financial statements.

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.

Change in Accounting Principle

As disclosed in Note 2, on July 1, 2021, the Company changed its accounting to burden the material at the time of purchase receipts. Prior to July 1, 2021, the Company applied the material burden at the time the inventory was issued to work in progress. This change resulted in a net increase of approximately $ 1,300 in inventory and a net decrease of $ 1,300 in accumulated deficit as of July 1, 2021.

The accounting change did not have a material effect on the loss from operations, net loss, or earnings per share for year ended December 31, 2021.