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Note 2 - Significant Transactions (Details Textual) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 20, 2021 | Dec. 31, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Oct. 20, 2022 | Mar. 31, 2022
Payments to Acquire Businesses, Gross |  |  | $ 4,950 | $ 300,793 |  |
Goodwill, Ending Balance |  | $ 285,809 | 285,809 |  |  | $ 291,166
Belyntic Acquisition [Member] |  |  |  |  |  |
Business Combination, Consideration Transferred, Total |  | 6,450 |  |  |  |
Payments to Acquire Businesses, Gross |  | 4,950 |  |  |  |
Agena [Member] |  |  |  |  |  |
Payments to Acquire Businesses, Gross | $ 300,793 |  |  |  |  |
Payments to Acquire Businesses, Settlement of Options | 31,800 |  |  |  |  |
Goodwill, Ending Balance | 135,728 |  |  |  | $ 135,728 |
Agena [Member] | Acquisition-related Costs [Member] |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  | $ 145 | $ 768 |  |  |
Agena [Member] | Agena Warrants [Member] |  |  |  |  |  |
Payments to Acquire Businesses, Gross | 2,000 |  |  |  |  |
Agena [Member] | Holders of Agena Preferred and Common Stock [Member] |  |  |  |  |  |
Payments to Acquire Businesses, Gross | $ 267,000 |  |  |  |  |

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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI https://asc.fasb.org/extlink&oid=123586518&loc=d3e1043-128460 + Details
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