NOTE 3 – REVENUE RECOGNITION:

The Company recognizes revenue on contracts when or as it satisfies a performance obligation by transferring control of the product to the customer. For contracts in which revenue is recognized upon shipment, control is generally transferred when products are shipped, title is transferred, significant risks of ownership have transferred, the Company has rights to payment, and rewards of ownership pass to the customer. For contracts in which revenue is recognized over time, control is generally transferred as the Company creates an asset that does not have an alternative use to the Company and the Company has an enforceable right to payment for the performance completed to date.

A performance obligation represents a promise in a contract to provide a distinct good or service to a customer. The Company accounts for a contract when it has approval and commitment from both parties, the rights of the parties are identified, payment terms are identified, the contract has commercial substance and collectability of consideration is probable. Transaction price reflects the amount of consideration to which the Company expects to be entitled in exchange for transferred products. A contract’s transaction price is allocated to each distinct performance obligation and revenue is recognized as the performance obligation is satisfied. In certain cases, the Company may separate a contract into more than one performance obligation, while in other cases, several products may be part of a fully integrated solution and are bundled into a single performance obligation. If a contract is separated into more than one performance obligation, the Company allocates the total transaction price to each performance obligation in an amount based on the estimated relative standalone selling prices of the promised goods underlying each performance obligation. The Company has made an accounting policy election to exclude from the measurement of the contract price all taxes assessed by government authorities that are collected by the Company from its customers. The Company does not adjust the contract price for the effects of a financing component if the Company expects, at contract inception, that the period between when a product is transferred to a customer and when the customer pays for the product will be one year or less. Shipping and handling fees billed to the customer are recorded in revenue and the related costs incurred for shipping and handling are included in cost of products sold.

Revenue on the majority of the Company’s contracts, as measured by number of contracts, is recognized upon shipment to the customer. Revenue on larger contracts, which are fewer in number but represent the majority of revenue, is recognized over time. Revenue from contracts that is recognized upon shipment accounted for approximately 25% and 40% of revenue for the three-month periods ended December 31, 2021 and 2020, respectively, and revenue from contracts that is recognized over time accounted for approximately 75% and 60% of revenue for the three-month periods ended December 31, 2021 and 2020, respectively. Revenue from contracts that is recognized upon shipment accounted for approximately 25% and 50% of revenue for the nine-month periods ended December 31, 2021 and 2020, respectively, and revenue from contracts that is recognized over time accounted for approximately 75% and 50% of revenue for the nine-month periods ended December 31, 2021 and 2020, respectively. During the nine months ended December 31, 2021, revenue recognized over time as a percentage of total revenue was higher as compared with the prior year period due to the prior year having limited production on large contracts during the first quarter of fiscal 2021 as a result of the COVID-19 pandemic, as well as the completion of two large projects in China which did not meet the criteria for recognizing revenue over time. The Company recognizes revenue over time when contract performance results in the creation of a product for which the Company does not have an alternative use and the contract includes an enforceable right to payment in an amount that corresponds directly with the

value of the performance completed. To measure progress towards completion on performance obligations for which revenue is recognized over time the Company utilizes an input method based upon a ratio of direct labor hours incurred to date to management’s estimate of the total labor hours to be incurred on each contract, an input method based upon a ratio of total contract costs incurred to date to management’s estimate of the total contract costs to be incurred or an output method based upon completion of operational milestones, depending upon the nature of the contract. The Company has established the systems and procedures essential to developing the estimates required to account for performance obligations over time. These procedures include monthly review by management of costs incurred, progress towards completion, identified risks and opportunities, sourcing determinations, changes in estimates of costs yet to be incurred, availability of materials, and execution by subcontractors. Sales and earnings are adjusted in current accounting periods based on revisions in the contract value due to pricing changes and estimated costs at completion. Losses on contracts are recognized immediately when evident to management.

The timing of revenue recognition, invoicing and cash collections affect trade accounts receivable, unbilled revenue (contract assets) and customer deposits (contract liabilities) on the Condensed Consolidated Balance Sheets. Unbilled revenue represents revenue on contracts that is recognized over time and exceeds the amount that has been billed to the customer. Unbilled revenue is separately presented in the Condensed Consolidated Balance Sheets. The Company may have an unconditional right to payment upon billing and prior to satisfying the performance obligations. The Company will then record a contract liability and an offsetting asset of equal amount until the deposit is collected and the performance obligations are satisfied. Customer deposits are separately presented in the Condensed Consolidated Balance Sheets. Customer deposits are not considered a significant financing component as they are generally received less than one year before the product is completed or used to procure specific material on a contract, as well as related overhead costs incurred during design and construction.

Contract liabilities at December 31, and March 31, 2021 include $6,468 and $1,603, respectively, of customer deposits for which the Company has an unconditional right to collect payment. Trade accounts receivable, as presented on the Condensed Consolidated Balance Sheets, includes corresponding balances at December 31, and March 31, 2021, respectively. Revenue recognized in the three and nine months ended December 31, 2021 that was included in the contract liability balance at March 31, 2021 and the contract liability balance acquired on June 1, 2021 of $6,048, was $5,659 and $18,951, respectively. Changes in the net contract liability balance during the nine months ended December 31, 2021 were impacted by a $4,936 increase in contract assets, of which $36,141 was due to contract progress and the acquisition of BN’s contract assets of $7,068 offset by invoicing to customers of $38,273. In addition, contract liabilities increased $13,606 driven new customer deposits of $26,509 offset by revenue recognized in the current period that was included in the contract liability balance at March 31, 2021, and the acquisition of BN’s contract liabilities of $6,048.

Receivables billed but not paid under retainage provisions in the Company’s customer contracts were $2,786 and $3,747 at December 31, and March 31, 2021, respectively.

Incremental costs to obtain a contract consist of sales employee and agent commissions. Commissions paid to employees and sales agents are capitalized when paid and amortized to selling, general and administrative expense when the related revenue is recognized. Capitalized costs, net of amortization, to obtain a contract were $149 and $39 at December 31, and March 31, 2021, respectively, and are included in the line item "Prepaid expenses and other current assets" in the Condensed Consolidated Balance Sheets. The related amortization expense was $12 and $309 in the three months ended December 31, 2021 and 2020, respectively, and $46 and $561 in the nine months ended December 31, 2021 and 2020

The Company’s remaining unsatisfied performance obligations represent a measure of the total dollar value of work to be performed on contracts awarded and in progress. The Company also refers to this measure as backlog. As of December 31, 2021, the Company had remaining unsatisfied performance obligations of $272,599. The Company expects to recognize revenue on approximately 40% to 50% of the remaining performance obligations within one year, 25% to 35% in one to two years and the remaining beyond two years.