SIGNIFICANT ACCOUNTING POLICIES | NOTE 2:- SIGNIFICANT ACCOUNTING POLICIES The consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP"). a. Use of estimates: The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates, judgments and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. The Company's management believes that the estimates, judgment and assumptions used are reasonable based upon information available at the time they were made. b. Financial statements in U.S. dollars: The Company's revenues are generated in various currencies including in U.S. dollars (USD), Australian dollars (AUD), Canadian dollars (CAD), Euros (EUR), Singapore dollars (SGD), British pounds (GBP), Indian Rupee (INR) and New Israeli Shekels (NIS). In addition, most of the Company's costs are incurred in USD, NIS and EUR. The Company’s management believes that the USD is the primary currency of the economic environment in which the Company operates. Thus, the functional and reporting currency of the Company is the USD. The functional currency of the Company's foreign subsidiaries is the local currency in which the relevant subsidiary operates. Accordingly, monetary accounts maintained in currencies other than the USD are re-measured into dollars in accordance with Accounting Standards Codification ("ASC") 830, "Foreign Currency Matters" (“ASC 830”). All transaction gains and losses resulting from the re-measurement of monetary balance sheet items denominated in non-USD currencies are reflected in the statements of operations as financial income or expenses as appropriate. The financial statements of the Company’s subsidiaries of which the functional currency is not the USD have been translated into the USD. All amounts on the balance sheets have been translated into the USD using the exchange rates in effect on the relevant balance sheet dates. All amounts in the statements of income have been translated into the USD using the monthly average exchange rate in accordance with ASC 830. The resulting translation adjustments are reported as a component of accumulated other comprehensive income (loss), net in shareholders' equity. c. Principles of consolidation: The consolidated financial statements include the accounts of the Company and its wholly and majority-owned subsidiaries (see also Note 1). Inter-company transactions and balances, including profit from inter-company sales not yet realized outside of the Company, have been eliminated upon consolidation. d. Cash equivalents: Cash equivalents are short-term highly liquid investments that are readily convertible to cash with original maturities of three months or less at the date acquired. e. Short-term bank deposits: Short-term bank deposits are deposits with original maturities of more than three months but less than one year. Short-term bank deposits are presented at their cost, which approximates their fair value. f. Marketable securities: Marketable securities consist of corporate and governmental bonds. The Company determines the appropriate classification of marketable securities at the time of purchase and re-evaluates such designation at each balance sheet date. In accordance with FASB ASC No. 320 “Investments - Debt and Equity Securities”, the Company classifies marketable securities as available-for-sale ("AFS"). Available-for-sale securities are stated at fair value, with unrealized gains and losses reported in accumulated other comprehensive income (loss), a separate component of stockholders’ equity, net of taxes. Realized gains and losses on sales of marketable securities, as determined on a specific identification basis, are included in financial income (expenses), net. The amortized cost of marketable securities is adjusted for amortization of premium and accretion of discount to maturity, both of which, together with interest, are included in financial income (expenses), net. The Company classifies its marketable securities as either short-term or long-term based on each instrument’s underlying contractual maturity date. Marketable securities with maturities of 12 months or less are classified as short-term and marketable securities with maturities greater than 12 months are classified as long-term. The Company assessed AFS debt securities with an amortized cost basis in excess of estimated fair value to determine what amount of that difference, if any, is caused by expected credit losses in accordance with ASC 326. Allowance for credit losses on AFS debt securities are recognized as a charge of credit loss expenses (income), net, on the consolidated statements of comprehensive income, and any remaining unrealized losses, net of taxes, are included in accumulated other comprehensive income (loss) in stockholders' equity. The Company did not record credit loss allowance on its marketable securities during the year ended December 31, 2021. g. Derivatives: ASC 815, “Derivative and Hedging” ("ASC 815"), requires companies to recognize all of their derivative instruments as either assets or liabilities in the statement of financial position at fair value. For those derivative instruments that are designated and qualify as hedging instruments, a company must designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge or a hedge of a net investment in a foreign operation. Derivative instruments designated as hedging instruments: For derivative instruments that are designated and qualify as a cash flow hedge (i.e., hedging the exposure to variability in expected future cash flows that is attributable to a particular risk), the effective portion of the gain or loss on the derivative instrument is reported as a component of other comprehensive income (loss) and reclassified into earnings in the same period during which the hedged transaction affects earnings. The remaining gain or loss on the derivative instrument in excess of the cumulative change in the present value of future cash flows of the hedged item, if any, is recognized in current earnings during the period of change. For derivative instruments not designated as hedging instruments, the gain or loss is recognized in current earnings during the period of change. To hedge against the risk of overall changes in cash flows resulting from foreign currency salary and other recurring payments during the periods, the Company has instituted a foreign currency cash flow hedging program. The Company hedges portions of its forecasted salary and other expenses denominated in NIS. These forward contracts are designated as cash flow hedges, as defined by ASC 815, and are all effective, as their critical terms match the underlying transactions being hedged. As of December 31, 2021 and 2020, the notional amount of these forward contracts into which the Company entered was $17,089, and $0, respectively, and the unrealized income recorded in accumulated other comprehensive income, net, from the Company's currency forward NIS transactions was $297 and $0, respectively. Derivative instruments not designated as hedging instruments: In addition to the derivatives that are designated as hedges as discussed above, the Company enters into certain foreign exchange forward and options contracts to limit its exposure to foreign currencies. In addition, the Company entered into derivative instruments to partially manage its exposure to movements associated with the Styrene prices. Gains and losses related to such derivative instruments are recorded in financial expenses, net. At December 31, 2021 and 2020, the notional amount of foreign exchange and styrene forward and option contracts into which the Company entered was $59,068 and $100,981, respectively. The foreign exchange and styrene forward and options contracts will expire at various times through 2022. The following tables present fair value amounts of, and gains and losses recorded in relation to, the Company's derivative instruments and related hedged items: Balance sheet Fair value of instruments Year ended 2021 2020 Derivative assets: Derivatives designated as hedging instruments: Foreign exchange option and forward contracts Other accounts receivable and prepaid expenses 1,400 - Derivatives not designated as hedging instruments: Foreign exchange option and forward contracts Other accounts receivable and prepaid expenses 297 - Styrene forward contract Other accounts receivable and prepaid expenses 204 - Total 1,901 - Derivative liabilities: Derivatives not designated as hedging instruments: Foreign exchange option and forward contracts Accrued expenses and other liabilities (329 ) (3,582 ) Styrene forward contract Accrued expenses and other liabilities - (209 ) Total (329 ) (3,791 ) The following tables present fair value amounts of, and gains and losses recorded in relation to, the Company's derivative instruments and related hedged items: Gain recognized in other comprehensive income, net Gain (loss) recognized in Year ended Statements of income Year ended December 31, 2021 2020 Item 2021 2020 Derivatives designated as hedging instruments: Foreign exchange forward contract 297 - Cost of revenues and Operating expenses (68 ) 2,406 Derivatives not designated as hedging instruments: Foreign exchange forward and options contracts - - Financial expenses, net 2,135 (750 ) Styrene forward contracts - - Financial expenses, net 2,192 (2,120 ) Total 297 - 4,259 (464 ) h. Inventories: Inventories are stated at the lower of cost and net realizable value. The Company periodically evaluates the quantities on hand relative to historical and projected sales volumes, aging, current and historical selling prices and contractual obligations to maintain certain levels of raw material quantities. Based on these evaluations, inventory provision is provided to cover risks arising from slow-moving items, discontinued products, excess inventories, net realizable value lower than cost and adjusted revenue forecasts. Cost is determined as follows: Raw Materials - cost is determined on a standard cost basis which approximates actual costs on a weighted average basis. Work-in progress and finished products - are based on standard cost (which approximates actual cost on a weighted average basis) which includes raw materials cost, labor and manufacturing overhead. Finished goods are stated at the lower of cost and net realizable value. The following table provides the details of the change in the Company's provision for inventory write-downs: December 31, 2021 2020 Inventory provision, beginning of year $ 16,607 $ 18,226 Assumed from business combination - 1,405 Increase in inventory provision 7,671 4,305 Write off (7,489 ) (7,329 ) Inventory provision, end of year $ 16,789 $ 16,607 i. Property, plant and equipment, net: 1. Property, plant and equipment are stated at cost, net of accumulated depreciation and investment grants. 2. Costs recorded prior to a production line completion are reflected as construction in progress, which are recorded building and machinery assets at the date of purchase. Construction in progress includes direct expenditures for the construction of the production line and is stated at cost. Capitalized costs include costs incurred under the construction contract: advisory, consulting and direct internal costs (including labor) and operating costs incurred during the construction and installation phase. 3. Depreciation is calculated using the straight-line method over the estimated useful life of the assets at the following annual rates: % Machinery and manufacturing equipment 4 - 33 (mainly 10) Office equipment and furniture 7 - 33 (mainly 7) Motor vehicles 10 - 30 (mainly 20) Buildings 4 - 5 Prepaid expenses related to operating lease 1 Leasehold improvements Over the shorter of the term of j. Leases: The Company determines if an arrangement is a lease at inception and recognize in accordance with ASC 842 “Leases”. Operating leases are included in operating lease right-of-use (“ROU”) assets, other current liabilities and operating lease liabilities in the Company’s consolidated balance sheets. ROU assets represent the right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Operating lease ROU assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. The Company uses incremental borrowing rates based on the Company's implied credit rating which was based on Moody's Investors Service Rating Methodology for the Building Materials Industry (such credit rating was notched up due to collateralization) at commencement date. The operating lease ROU asset also includes any lease payments made and excludes lease incentives, if any. Lease terms may include options to extend or terminate the lease when it is reasonably certain that the Company will exercise that option. Lease expenses for lease payments are recognized on a straight-line basis over the lease term. See also Note 10. k. Impairment of long-lived assets: The Company's long-lived assets (assets group) to be held or used, including right of use assets, tangible and finite-lived intangible assets (other than goodwill), are reviewed for impairment in accordance with ASC 360 "Property, Plant and Equipment" ("ASC 360") 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 the future undiscounted cash flows expected to be generated by the asset. If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets. Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell. No impairment losses were identified during any period presented. In addition to the recoverability assessment, the Company routinely reviews the remaining estimated useful lives of property and equipment and finite-lived intangible assets. If the Company reduces the estimated useful life assumption for any asset, the remaining unamortized balance would be amortized or depreciated over the revised estimated useful life. l. Goodwill: Goodwill represents the excess of the cost of businesses acquired over the fair value of the net assets acquired in the acquisition. Under ASC 350, "Intangibles-Goodwill and Other" ("ASC 350") goodwill is not amortized but instead is tested for impairment at least annually (or more frequently if impairment indicators arise). The carrying amount of the reporting unit over its fair value is recognized as an impairment loss, and the carrying value of goodwill is written down to fair value. The goodwill impairment test is performed according to the following principles: (1) An initial qualitative assessment may be performed to determine whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount. (2) If the Company concludes it is more likely than not that the fair value of the reporting unit is less than its carrying amount, a quantitative fair value test is performed. An impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value is recognized. The Company performs an annual goodwill impairment test during the fourth quarter of each fiscal year, or more frequently, if impairment indicators are present. The Company operates in one operating segment. The Company concluded that all of the Company's reporting units should be aggregated and deemed as a single reporting unit for the purpose of performing the goodwill impairment test in accordance with ASC 350-20-35-35, since they have similar economic characteristics. Goodwill was tested for impairment by comparing Company’s fair value with its carrying value. As required by ASC 820, "Fair Value Measurements", the Company applies assumptions that marketplace participants would consider in determining the fair value of reporting unit. The process of evaluating the potential impairment of goodwill is subjective and requires significant judgment at many points during the analysis. Significant estimates used in the fair value methodologies include estimates of future cash flows, future short-term and long-term growth rates and weighted average cost of capital. If these estimates or their related assumptions change in the future, the Company may be required to record impairment charges for its goodwill and intangible assets with an indefinite life. No impairment of goodwill was identified during any period presented. m. Warranty: The Company generally provides a standard (i.e. assurance type) warranty for its products, for various periods, depending on the type of product and the country in which the Company does business. The Company records a provision for the estimated cost to repair or replace products under warranty at the time of sale. Factors that affect the Company's warranty reserve include the number of units sold, historical and anticipated rates of warranty repairs and the cost per repair. The following table provides the details of the change in the Company's warranty accrual: 2021 2020 January 1, $ 2,579 $ 2,916 Charged to costs and expenses relating to new sales 1,559 1,281 Costs of product warranty claims (1,538 ) (1,459 ) Foreign currency translation adjustments 80 (159 ) December 31, $ 2,680 $ 2,579 n. Revenue recognition: Revenues are recognized in accordance with ASC 606, revenue from contracts with customers when control of the promised goods or services is transferred to the customers, in an amount that the Company expects in exchange for those goods or services. The Company applies the following five steps in accordance to ASC 606: (1) identify the contract with a customer, (2) identify the performance obligations in the contract, (3) determine the transaction price, (4) allocate the transaction price to the performance obligations in the contract, and (5) recognize revenue when a performance obligation is satisfied. 1. Identify the contract with a customer: A contract is an agreement between two or more parties that creates enforceable rights and obligations. In evaluating the contract, the Company analyzes the customer’s intent and ability to pay the amount of promised consideration (credit risk) and considers the probability of collecting substantially all of the consideration. The Company determines whether collectability is reasonably assured on a customer-by-customer basis pursuant to various criteria including Company’s historical experience, credit insurance and other inputs. 2. Identify the performance obligations in the contract: At a contract’s inception, the Company assesses the goods or services promised in a contract with a customer and identifies the performance obligations. The main performance obligation is a delivery of the Company’s products. 3. Determine the transaction price: The Company’s products that are sold through agreements with distributors are non-exchangeable, non-refundable, non-returnable and without any rights of price protection or stock rotation. Accordingly, the Company considers all the distributors to be end-consumers. For certain revenue transactions with specific customers, the Company is responsible also for the fabrication and installation of its products. The Company recognizes such revenues upon receipt of acceptance evidence from the end consumer which occurs upon completion of the installation. Although, in general, the Company does not grant rights of return, there are certain instances where such rights are granted. The Company maintains a provision for returns in accordance with ASC 606, which is estimated, based primarily on historical experience as well as management judgment, and is recorded through a reduction of revenue. 4. Allocate the transaction price to the performance obligations in the contract: The majority of the Company’s revenues are sales of goods, therefore there is one main performance obligation that absorbs the transaction price. 5. Recognize revenue when a performance obligation is satisfied: Revenue is recognized when or as performance obligations are satisfied by transferring control of a promised good or service to a customer. Control transfers at a point in time, which affects when revenue is recorded. The majority of Company’s revenues deriving from sales of products which are recognized when control is transferred based on the agreed International Commercial terms, or “INCOTERMS”. o. Research and development costs: Research and development costs are charged to the statement of income as incurred. p. Income taxes: The Company and its subsidiaries account for income taxes in accordance with ASC 740, "Income Taxes" (“ASC 740”). This statement prescribes the use of the liability method whereby deferred tax asset and liability account balances are determined based on differences between financial reporting and tax bases of assets and liabilities and are measured using the enacted tax rates and laws that will be in effect when the differences are expected to reverse. The Company accounts for its uncertain tax positions in accordance with ASC 740-10. ASC 740-10 contains a two-step approach to recognizing and measuring uncertain tax positions accounted for in accordance with ASC 740. The first step is to evaluate the tax position taken or expected to be taken in a tax return by determining if the weight of available evidence indicates that it is more likely than not that, on an evaluation of the technical merits, the tax position will be sustained on audit, including resolution of any related appeals or litigation processes. The second step is to measure the tax benefit as the largest amount that is more than 50% likely to be realized upon ultimate settlement. The Company classifies interest and penalties on income taxes as taxes on income. q. Advertising expenses: Advertising costs are expensed as incurred. Advertising expenses for the years ended December 31, 2021, 2020 and 2019 were $15,307, $14,457 and $16,233, respectively. r. Concentrations of credit risk: Financial instruments that potentially subject the Company to concentrations of credit risk consist principally of cash and cash equivalents, marketable securities and trade receivables. The Company's cash and cash equivalents are invested primarily in USD, mainly with major banks in Israel. The Company's debt marketable securities include investments in highly-rated corporate debentures (located mainly in U.S.) and governmental bonds. The financial institution that holds the Company's debt marketable securities is a major financial institution located in the United States. The Company believes that its marketable securities portfolio is a diverse portfolio of highly-rated securities and the Company's investment policy limits the amount the Company may invest in an issuer (see Note 2f). The Company's trade receivables are derived from sales to customers located mainly in the United States, Australia, Canada, Israel and Europe. The Company performs ongoing credit evaluations of its customers and to date has not experienced any substantial losses. In certain circumstances, the Company requires letters of credit or prepayments. An allowance for credit losses (i.e. doubtful accounts) is provided with respect to specific receivables that the Company has determined to be doubtful of collection. For those receivables not specifically reviewed, provisions are recorded at a specific rate, based upon the age of the receivable, the collection history, current economic trends and management estimates of future economic conditions. No customer represented 10% or more of the Company’s total accounts receivables, net as of December 31, 2021 and 2020. The following table provides the detail of the change in the Company's allowance for credit loss: 2021 2020 January 1, $ 6,783 $ 2,497 Charges to expenses 2,437 3,142 Write offs (121 ) (984 ) Assumed from business combinations - 2,066 Foreign currency translation adjustments (63 ) 62 December 31, $ 9,036 $ 6,783 s. Severance pay: The Company's liability for severance pay, with respect to its Israeli employees, is calculated pursuant to Israeli severance pay law and employee agreements based on the most recent salary of the employees. The Company's liability for all of its Israeli employees is provided for by monthly deposits with insurance policies and by an accrual. The value of these policies is recorded as an asset on the Company's balance sheet. The deposited funds include profits or losses accumulated up to the balance sheet date. The deposited funds may be withdrawn only upon the fulfillment of the obligations pursuant to Israeli severance pay law or labor agreements. Majority of the agreements with employees specifically state, in accordance with section 14 of the Severance Pay Law, 1963 ("Section 14"), that the Company's contributions for severance pay shall be instead of severance compensation and that upon release of the policy to the employee, no additional calculations shall be conducted between the parties regarding the matter of severance pay and no additional payments shall be made by the Company to the employee. Further, since the Company has signed agreements with its employees under Section 14, the related obligation and amounts deposited on behalf of such obligation are not stated on the balance sheet, as they are legally released from obligation to employees once the deposit amounts have been paid. Severance pay expenses for the years ended December 31, 2021, 2020 and 2019 amounted to approximately $2,539, $2,292 and $2,189, respectively. t. Fair value of financial instruments: In accordance with ASC 820, the Company measures its cash equivalents, marketable securities, and derivatives at fair value using the market approach valuation technique. Cash equivalents and marketable securities are classified within Level 1 and Level 2, respectively, because these assets are valued using quoted market prices or alternative pricing sources and models utilizing market observable inputs. The following table sets forth the Company’s assets and liabilities that were measured at fair value as of December 31, 2021 and 2020 by level within the fair value hierarchy: Fair Value Fair value measurements as of December 31, Description Hierarchy 2021 2020 Measured at fair value on a recurring basis: Assets Cash equivalents: Money market mutual funds Level 1 $ 175 $ 1,011 Short-term marketable securities: Corporate bonds Level 2 $ 10,751 $ 7,607 Governmental bonds Level 2 $ 477 $ 505 Derivatives: Derivative assets Level 2 $ 1,901 $ - Long-term marketable securities: Corporate bonds Level 2 $ 8,647 $ 10,434 Governmental bonds Level 2 $ - $ 492 Liabilities Derivatives: Contingent Consideration Level 3 $ - $ 1,492 Derivative liabilities Level 2 $ (329 ) $ (3,791 ) Redeemable Non-Controlling Interest Level 3 $ 7,869 $ 7,701 The carrying amounts of financial instruments not measured at fair value, including cash and cash equivalents, trade receivables, other accounts receivables, trade payables, accrued expenses and other liabilities, short term loans and short term bank credit, approximate their fair value due to the short-term maturities of such instruments. The carrying amount of long-term loan approximates its fair value. u. Basic and diluted net income per share: Basic net income per share ("Basic EPS") is computed by dividing net income attributable to ordinary shareholders by the weighted average number of ordinary shares outstanding during the period. Diluted net income per share ("Diluted EPS") gives effect to all dilutive potential ordinary shares outstanding during the period. The computation of Diluted EPS does not assume conversion, exercise or contingent exercise of securities that would have an anti-dilutive effect on earnings. The dilutive effect of outstanding stock options is computed using the treasury stock method. For the years ended December 31, 2021, 2020 and 2019 there were 1,344,673, 1,414,812 and 1,244,500 outstanding stock options, respectively, that were excluded from the computation of Diluted EPS, that would have had an anti dilutive effect if included. v. Comprehensive income and accumulated other comprehensive income (loss): Comprehensive income consists of two components, net income and other comprehensive income ("OCI"). OCI refers to revenue, expenses, and gains and losses that under U.S. GAAP are recorded as an element of shareholders’ equity but are excluded from net income. Company’s OCI consists of foreign currency translation adjustments from those subsidiaries not using the USD as their functional currency and net deferred gains and losses on certain derivative instruments accounted for as cash flow hedges and marketable securities. The total accumulated other comprehensive income ("AOCI"), net of tax was comprised as follows: December 31, 2021 2020 Accumulated gain (loss) on marketable securities $ (40 ) $ 13 Accumulated losses on derivative instruments 297 - Accumulated foreign currency translation differences differences and other (961 ) 1,070 Total accumulated other comprehensive income loss, net $ (704 ) $ 1,083 The following table summarizes the changes in AOCI, net of taxes for the year ended: Unrealized gains (losses) on derivative instruments Unrealized gains (losses) on marketable securities Accumulated foreign currency translation differences and other Total Balance at January 1, 2020 - - (3,288 ) (3,288 ) Other comprehensive income (loss) before reclassifications 2,406 13 4,358 6,777 Amounts reclassified from AOCI (2,406 ) - - (2,406 ) Net current period OCI - 13 4,358 4,371 Balance at December 31, 2020 - 13 1,070 1,083 Other comprehensive income (loss) before reclassifications 229 (53 ) (2,031 ) (1,855 ) Amounts reclassified from AOCI 68 - - 68 Net current period OCI 297 (53 ) (2,031 ) (1,787 ) Balance at December 31, 2021 297 (40 ) (961 ) (704 ) The following table shows the amounts reclassified from AOCI into the Consolidated Statements of Income, and the associated financial statement line item, for 2021 and 2020: December 31, 2021 2020 Affected line item in the consolidated statements of income Cost of revenues $ (52 ) $ 1,857 Research and development (2 ) 61 Marketing and selling (6 ) 217 General and administrative (8 ) 271 Total gain (loss) $ (68 ) $ 2,406 w. Accounting for stock-based compensation: Equity share based payment: The Company accounts for stock-based compensation in accordance with ASC 718, "Compensation-Stock Compensation" ("ASC 718"). ASC 718 requires companies to estimate the fair value of equity-based payment awards on the date of grant using an option-pricing model. The Company accounts for employees and directors’ share-based payment awards classified as equity awards using the grant-date fair value method. The fair value of share-based payment transactions is recognized as an expense over the requisite service period. The Company elected to recognize compensation expense for an award that has a graded vesting schedule using the accelerated method and the Company’s accounting policy is to account for forfeitures as they occur. The exercise price of each option is generally Company's stock price on the date of the grant. Options generally become exercisable over approximately three four-year four-year In 2021 and 2020, the Company estimated the fair value of stock options granted using the Black-Scholes option pricing model with the following weighted average assumptions: December 31, 2021 2020 Dividend yield 0 - 3 % 0 - 3 % Expected volatility 45-48.0 % 46.0 % Risk-free interest rate 1-1.5 % 0.7 % Expected life (in years) 4-5.5 5.1 The Company used volatility data in accordance with ASC 718 and based on Company's historical data. The computation of risk free interest rate is based on the rate available on the date of grant of a zero-coupon U.S. government bond with a remaining term equal to the expected term of the option. The expected term of options granted is calculated using the simplified method (being the average between the vesting periods and the contractual life of the options). For the vast majority of the options granted in 2021 and 2020, the dividend yield is zero, due to adjustment mechanism with respect to the exercise price upon payment of a dividend |