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Note 4 - Fair Value Measurements | 9 Months Ended
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Dec. 31, 2022
Notes to Financial Statements |
Fair Value Disclosures [Text Block] | Note 4. Fair Value Measurements Our financial instruments consist primarily of cash and cash equivalents, trade accounts receivable, obligations under trade accounts payable, and debt. Due to their short-term nature, the carrying values for cash and cash equivalents, trade accounts receivable, and trade accounts payable approximate fair value. We measure our cash equivalents at fair value using quoted market prices in an active market, and we classify them within Level 1 of the fair value hierarchy. Historically, the financial instruments that subject us to the highest concentration of credit risk are cash and cash equivalents and accounts receivable. It is our policy to invest in highly liquid cash equivalent financial instruments with high credit ratings and to maintain low single issuer exposure (except U.S. treasuries). Concentration of credit risk with respect to accounts receivable is limited to customers to which we make significant sales. We reserve an allowance for potential write-offs of accounts receivable using historical collection experience and current and expected future economic and market conditions, but we have not written off any significant accounts to date. To manage credit risk, we consider the creditworthiness of new and existing customers, and we regularly review outstanding balances and payment histories. We may require pre-payments from customers under certain circumstances and may limit future purchases until payments are made on past due amounts. We have outstanding $172,500 aggregate principal of 1.375% convertible senior notes due August 15, 2025 (the "Notes"). We estimate the fair value of the Notes based on the last actively traded price or observable market input preceding the end of the reporting period and the fair value is approximately correlated to our stock price. The estimated fair value and carrying value of the Notes were as follows:
|  | December 31, 2022 |  |  | March 31, 2022 |
|  | Carrying Value |  |  | Fair Value (Level 2) |  |  | Carrying Value |  |  | Fair Value (Level 2) |
Notes |  | $ | 170,044 |  |  | $ | 157,191 |  |  | $ | 169,365 |  |  | $ | 185,438 |
Assets recognized or disclosed at fair value in the unaudited condensed consolidated financial statements on a nonrecurring basis include items such as property and equipment, operating lease assets, goodwill, and other intangible assets. These assets are measured at fair value if determined to be impaired. During the three months ended December 31, 2022, in response to the loss of a significant customer, we used Level 3 inputs to test the recoverability of the Clinical Genomics division’s intangible asset group and evaluate the division’s goodwill for impairment in response to the loss of a significant customer. After considering all information available to us as of the date of testing, we concluded that no impairment is indicated. Fair values preliminarily assigned to assets acquired and liabilities assumed in the Belyntic acquisition were measured using Level 3 inputs, and are subject to change. There were no transfers between the levels of the fair value hierarchy during the three and nine months ended December 31, 2022 or 2021, respectively.

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- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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