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Note 2 - Revenue Recognition (Tables) | 6 Months Ended
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Sep. 30, 2021
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Three Months Ended September 30, 2021 |
|  | Sterilization and Disinfection Control |  |  | Biopharmaceutical Development |  |  | Instruments |  |  | Continuous Monitoring |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 11,985 |  |  | $ | 5,218 |  |  | $ | 853 |  |  | $ | 7 |  |  | $ | 18,063 |
Hardware and Software |  |  | 85 |  |  |  | 3,472 |  |  |  | 4,485 |  |  |  | 2,063 |  |  |  | 10,105 |
Services |  |  | 493 |  |  |  | 850 |  |  |  | 1,632 |  |  |  | 1,349 |  |  |  | 4,324 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 1,470 |  |  |  | 1,015 |  |  |  | - |  |  |  | 863 |  |  |  | 3,348 |
Total Revenues |  | $ | 14,033 |  |  | $ | 10,555 |  |  | $ | 6,970 |  |  | $ | 4,282 |  |  | $ | 35,840 |
|  | Three Months Ended September 30, 2020 |
|  | Sterilization and Disinfection Control |  |  | Biopharmaceutical Development |  |  | Instruments |  |  | Continuous Monitoring |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 9,518 |  |  | $ | 3,238 |  |  | $ | 715 |  |  | $ | 15 |  |  | $ | 13,486 |
Hardware and Software |  |  | 108 |  |  |  | 4,191 |  |  |  | 4,815 |  |  |  | 2,207 |  |  |  | 11,321 |
Services |  |  | 706 |  |  |  | 1,005 |  |  |  | 2,028 |  |  |  | 614 |  |  |  | 4,353 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 1,220 |  |  |  | 697 |  |  |  | - |  |  |  | 783 |  |  |  | 2,700 |
Total Revenues |  | $ | 11,552 |  |  | $ | 9,131 |  |  | $ | 7,558 |  |  | $ | 3,619 |  |  | $ | 31,860 |
|  | Six Months Ended September 30, 2021 |
|  | Sterilization and Disinfection Control |  |  | Biopharmaceutical Development |  |  | Instruments |  |  | Continuous Monitoring |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 24,861 |  |  | $ | 8,826 |  |  | $ | 1,795 |  |  | $ | 17 |  |  | $ | 35,499 |
Hardware and Software |  |  | 245 |  |  |  | 7,029 |  |  |  | 9,723 |  |  |  | 3,907 |  |  |  | 20,904 |
Services |  |  | 1,194 |  |  |  | 1,432 |  |  |  | 3,014 |  |  |  | 2,202 |  |  |  | 7,842 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 2,883 |  |  |  | 2,145 |  |  |  | - |  |  |  | 1,487 |  |  |  | 6,515 |
Total Revenues |  | $ | 29,183 |  |  | $ | 19,432 |  |  | $ | 14,532 |  |  | $ | 7,613 |  |  | $ | 70,760 |
|  | Six Months Ended September 30, 2020 |
|  | Sterilization and Disinfection Control |  |  | Biopharmaceutical Development |  |  | Instruments |  |  | Continuous Monitoring |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 21,002 |  |  | $ | 5,177 |  |  | $ | 1,523 |  |  | $ | 45 |  |  | $ | 27,747 |
Hardware and Software |  |  | 237 |  |  |  | 6,747 |  |  |  | 9,835 |  |  |  | 4,162 |  |  |  | 20,981 |
Services |  |  | 956 |  |  |  | 1,787 |  |  |  | 3,880 |  |  |  | 1,145 |  |  |  | 7,768 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 2,424 |  |  |  | 1,369 |  |  |  | - |  |  |  | 1,512 |  |  |  | 5,305 |
Total Revenues |  | $ | 24,619 |  |  | $ | 15,080 |  |  | $ | 15,238 |  |  | $ | 6,864 |  |  | $ | 61,801 |
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] |
|  | Three Months Ended September |  |  | Six Months Ended September 30, |
|  | 2021 |  |  | 2020 |  |  | 2021 |  |  | 2020 |
United States |  | $ | 19,384 |  |  | $ | 11,222 |  |  | $ | 37,839 |  |  | $ | 27,594 |
Foreign |  |  | 16,456 |  |  |  | 20,638 |  |  |  | 32,921 |  |  |  | 34,207 |
Total revenues |  | $ | 35,840 |  |  | $ | 31,860 |  |  | $ | 70,760 |  |  | $ | 61,801 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
Contract liabilities as of March 31, 2021 |  | $ | 8,994 |
Prior year liabilities recognized in revenues during the six months ended September 30, 2021 |  |  | (3,910 | )
Contract liabilities added during the six months ended September 30, 2021, net of revenues recognized |  |  | 5,592 |
Contract liabilities balance as of September 30, 2021 |  | $ | 10,676 |

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