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Significant Accounting Policies (Policies) | 9 Months Ended
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Dec. 31, 2020
Accounting Policies [Abstract] |
Basis of Accounting, Policy [Policy Text Block] | Basis of Presentation The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) for interim financial information and pursuant to the rules and regulations of the Securities and Exchange Commission. In the opinion of management, such unaudited information includes all adjustments, consisting of normal recurring adjustments necessary for a fair presentation of our financial position and results of operations. The results of operations for the interim periods are not necessarily indicative of results that may be achieved for the entire year. The year-end condensed consolidated balance sheet data was derived from audited financial statements but does not include all disclosures required by accounting principles generally accepted in the United States of America. This quarterly report should be read in conjunction with the consolidated financial statements included in our annual report on Form 10-K for the year ended March 31, 2020.
Risk and Uncertainties, Policy [Policy Text Block] | Risks and Uncertainties The preparation of financial statements requires the use of estimates and assumptions that affect the reported amounts of assets and liabilities at the reporting date and revenues and expenses during the reporting periods. These estimates represent management's judgement about the outcome of future events. The current global business environment continues to be impacted directly and indirectly by the effects of the novel coronavirus ("COVID-19"), and it is not possible to accurately predict the future impact of COVID-19. However, we have reviewed the estimates used in preparing the financial statements and have identified the following factors that have a reasonable possibility of being materially affected by the impacts of COVID-19 during the near term:
● | Estimates regarding the future financial performance of the business used in the impairment tests for goodwill and long-lived assets acquired in a business combination; however, we identified no triggering events since our impairment analysis was completed during the three months ended March 31, 2020;
● | Estimates regarding the recoverability of deferred tax assets and estimates regarding cash needs and associated indefinite reinvestment assertions;
● | Estimates regarding recoverability for customer receivables;
● | Estimates of the net realizable value of inventory.
Immaterial Error Correction, Policy [Policy Text Block] | Immaterial Error Correction During the three months ended September 30, 2020, we identified an immaterial error in the design of our Enterprise Resource Planning tool that resulted in a system failure to eliminate intercompany cost of revenues for certain types of transactions. The error resulted in an overstatement of cost of goods sold and an understatement in gross profit for the Continuous Monitoring, Instruments, and Sterilization and Disinfection Control divisions. The issue began during the three months ended June 30, 2019; we have determined that no financial statement prior to April 1, 2019 was misstated as a result of the previously uneliminated balances in cost of revenues. In accordance with Staff Accounting Bulletin ("SAB") No. 99 Materiality, and SAB No. 108 Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in the Current Year Financial Statements, we evaluated the error quantitatively and qualitatively and determined that the related impact was not material to our financial statements for any prior annual or interim period, but that correcting the cumulative impact of the error would be significant to our results of operations for the three months ended September 30, 2020. In considering the quantitative and qualitative materiality, we concluded that the impact of the error correction is not material in absolute dollar amount especially since our most recent fiscal year results included various new non-cash charges that reduced net income below historical levels. Accordingly, we have revised previously reported financial information for the immaterial error. We performed manual intercompany elimination calculations and determined that cost of revenues and accumulated other comprehensive income were overstated by $429 for the year ended March 31, 2020, which would increase operating income and net income by $429 and diluted earnings per share by $0.10; there was no income tax impact on the full year adjustment since the inventory balance was not misstated. To correct the immaterial error, we have restated retained earnings as of March 31, 2020. The error resulted in overstated cost of goods sold and a corresponding understatement of net income of: $65 during the three months ended June 30, 2019; $110 during the three months ended September 30, 2019, $126 during the three months ended December 31, 2019, and $128 during the three months ended March 31, 2020. Additionally, during the three months ended June 30, 2020, cost of revenues was overstated by $372, which after the impact of taxes would increase net income by $192 and diluted earnings per share by $0.04. We have restated retained earnings as of June 30, 2020 in the amount of $192. The immaterial error has no impact on total cash flows or total comprehensive income for any of the periods that were revised.
New Accounting Pronouncements, Policy [Policy Text Block] | Recently Issued Accounting Pronouncements In August, 2020, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2020-06, Debt with Conversion and Other Options and Derivatives and Hedging Accounting for Convertible Instruments and Contracts in an Entity's Own Equity, which simplifies the accounting for certain financial instruments with characteristics of liabilities and equity, such as our convertible senior notes, due 2025. ASU 2020-06 also enhances transparency and improves disclosures for convertible instruments and earnings per share guidance. It is effective for annual reporting periods beginning after December 15, 2021, including interim periods within those fiscal years. Early adoption is permitted, but no earlier than fiscal years beginning after December 15, 2020. The update permits the use of either the modified retrospective or fully retrospective method of transition. We intend to adopt the ASU effective April 1, 2021 but are still evaluating the method of adoption we will utilize. We are continuing to evaluate the financial impact of the adoption of ASU 2020-06 on our financial statements but anticipate that subsequent to adoption, the equity conversion feature will be categorized as a liability and there will be a reduction in non-cash interest expense related to the 1.375% convertible senior notes due August 15, 2025 (the "Notes"). Non-cash interest on the equity conversion feature has contributed $3,510 to expense during the nine months ended December 31, 2020, which would not have been incurred under ASU 2020-06, which we will adopt as of April 1, 2021. Recently Adopted Accounting Pronouncements In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments -Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, as modified by ASU No. 2018-19, Codification Improvements to Topic 326, Financial Instruments - Credit Losses, which amends the impairment model by requiring entities to use a forward-looking approach based on expected losses rather than incurred losses to estimate credit losses on certain types of financial instruments, including trade receivables. The ASU was effective for public business entities for fiscal years beginning after December 15, 2019, with early adoption permitted. On April 1, 2020, we adopted the ASU using the modified retrospective transition method. We recorded a net decrease to beginning retained earnings of $9 as of April 1, 2020 due to the cumulative effect of adopting Topic 326's requirement to use a forward-looking approach based on expected losses rather than incurred losses to estimate credit losses on our trade receivables. As a result of the adoption of the ASU, our allowance for doubtful accounts as of December 31, 2020 reflects our best estimate of the expected future losses for our accounts receivable based on current economic conditions. We have accounted for the macroeconomic impact of the COVID-19 pandemic in our estimates, but due to the unprecedented nature of the impact of the pandemic, our estimates may change and future actual losses may differ from current estimates. We will continue to monitor economic conditions and will revise our estimate of expected future losses for accounts receivable as necessary. We are exposed to credit losses primarily through sales of products and services. Our expected loss allowance methodology for accounts receivable was developed using historical collection experience, current and expected future economic and market conditions and a review of the current status of customers’ trade accounts receivables. Customers are pooled based on shared specific risk factors. Due to the short-term nature of trade receivables, the estimated accounts receivable that may not be collected is based on the aging of accounts receivable balances. Customers are assessed for credit worthiness upfront through a credit review. We evaluate contract terms and conditions, and may require prepayment to mitigate risk of loss. Specific allowance amounts are established to record the appropriate provision for customers with a higher probability of default. We monitor changes to the receivables balance on timely basis, and balances are written off as they are determined to be uncollectable after all collection efforts have been exhausted. Estimates of potential credit losses are used to determine the allowance based on assessment of anticipated payment and all other historical, current and future information reasonably available.

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- Definition Disclosure of accounting policy for basis of accounting, or basis of presentation, used to prepare the financial statements (for example, US Generally Accepted Accounting Principles, Other Comprehensive Basis of Accounting, IFRS). + References No definition available. + Details
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- Definition Disclosure of accounting policy pertaining to new accounting pronouncements that may impact the entity's financial reporting. Includes, but is not limited to, quantification of the expected or actual impact. + References No definition available. + Details
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