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Note 12 - Segment Information - Operating Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2024 | Dec. 31, 2023
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | $ 62,840 |  | $ 53,473 | $ 178,843 |  | $ 157,283
Gross profit |  | 39,754 |  | 33,402 | 112,458 |  | 96,694
Operating expense |  | 33,975 |  | 33,469 | 97,591 |  | 97,485
Operating income (loss) |  | 5,779 |  | (67) | 14,867 |  | (791)
Non-operating expense (income), net |  | (7,996) |  | 2,013 | (9,367) |  | 475
Operating Segments [Member] |  |  |  |  |  |  |
Gross profit |  | 39,754 |  | 33,453 | 112,458 |  | 96,755
Operating expense |  | 33,975 |  | 33,469 | 97,591 |  | 97,485
Operating income (loss) |  | 5,779 |  | (67) | 14,867 |  | (791)
Non-operating expense (income), net |  | 7,996 |  | (2,013) | 9,367 |  | (475)
(Loss) earnings before income taxes |  | (2,217) |  | 1,946 | 5,500 |  | (316)
Operating Segments [Member] | Sterilization and Disinfection Control [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1],[2] | 23,507 | [3] | 19,338 | 68,669 | [4] | 52,345
Gross profit | [2] | 16,461 |  | 13,951 | 47,191 |  | 38,018
Operating Segments [Member] | Clinical Genomics [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 12,667 |  | 12,546 | 35,570 |  | 41,464
Gross profit |  | 6,948 |  | 6,449 | 19,344 |  | 20,904
Operating Segments [Member] | Biopharmaceutical Development [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 12,237 |  | 9,430 | 36,112 |  | 28,526
Gross profit |  | 7,539 |  | 5,841 | 22,665 |  | 17,783
Operating Segments [Member] | Calibration Solutions [Member] |  |  |  |  |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | [1] | 14,429 |  | 12,159 | 38,492 |  | 34,948
Gross profit |  | 8,806 |  | 7,212 | 23,258 |  | 20,050
Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] |  |  |  |  |  |  |
Gross profit | [5] | $ 0 |  | $ (51) | $ 0 |  | $ (61)
[1] | Intersegment revenues are not significant and are eliminated to arrive at consolidated totals.
[2] | Includes post-acquisition GKE results during the three and six months ended September 30, 2024.
[3] | Revenues of $5,863 from GKE are included in the Sterilization and Disinfection Control division during the three months ended September 30, 2024.
[4] | Revenues of $12,117 from GKE are included in the Sterilization and Disinfection Control division during the six months ended September 30, 2024.
[5] | Unallocated corporate expenses are reported within corporate and other.

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