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Note 2 - Revenue Recognition (Tables) | 12 Months Ended
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Mar. 31, 2021
Notes Tables |
Disaggregation of Revenue [Table Text Block] |
|  | Year Ended March 31, 2021 |
|  | Sterilization and Disinfection Control |  |  | Instruments |  |  | Biopharmaceutical Development |  |  | Continuous Monitoring |  |  | Corporate and Other |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 45,869 |  |  | $ | 3,135 |  |  | $ | 13,942 |  |  | $ | 63 |  |  | $ | - |  |  | $ | 63,009 |
Hardware and Software |  |  | 505 |  |  |  | 21,346 |  |  |  | 13,545 |  |  |  | 8,623 |  |  |  | - |  |  |  | 44,019 |
Services |  |  | 1,848 |  |  |  | 7,980 |  |  |  | 2,928 |  |  |  | 2,870 |  |  |  | - |  |  |  | 15,626 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 4,897 |  |  |  | 4 |  |  |  | 3,477 |  |  |  | 2,905 |  |  |  | - |  |  |  | 11,283 |
Total Revenues |  | $ | 53,119 |  |  | $ | 32,465 |  |  | $ | 33,892 |  |  | $ | 14,461 |  |  | $ | - |  |  | $ | 133,937 |
|  | Year Ended March 31, 2020 |
|  | Sterilization and Disinfection Control |  |  | Instruments |  |  | Biopharmaceutical Development |  |  | Continuous Monitoring |  |  | Corporate and Other |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 42,654 |  |  | $ | 3,197 |  |  | $ | 4,981 |  |  | $ | 43 |  |  | $ | 2,436 |  |  | $ | 53,311 |
Hardware and Software |  |  | 551 |  |  |  | 25,627 |  |  |  | 6,015 |  |  |  | 7,897 |  |  |  | - |  |  |  | 40,090 |
Services |  |  | 1,592 |  |  |  | 9,160 |  |  |  | 1,761 |  |  |  | 2,396 |  |  |  | 27 |  |  |  | 14,936 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 4,863 |  |  |  | - |  |  |  | 1,094 |  |  |  | 3,393 |  |  |  | - |  |  |  | 9,350 |
Total Revenues |  | $ | 49,660 |  |  | $ | 37,984 |  |  | $ | 13,851 |  |  | $ | 13,729 |  |  | $ | 2,463 |  |  | $ | 117,687 |
|  | Year Ended March 31, 2019 |
|  | Sterilization and Disinfection Control |  |  | Instruments |  |  | Biopharmaceutical Development |  |  | Continuous Monitoring |  |  | Corporate and Other |  |  | Total |
Discrete Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Consumables |  | $ | 39,670 |  |  | $ | 3,101 |  |  | $ | - |  |  | $ | 388 |  |  | $ | 6,430 |  |  | $ | 49,589 |
Hardware and Software |  |  | 580 |  |  |  | 24,500 |  |  |  | - |  |  |  | 6,987 |  |  |  | 142 |  |  |  | 32,209 |
Services |  |  | 1,209 |  |  |  | 8,524 |  |  |  | - |  |  |  | 2,001 |  |  |  | 335 |  |  |  | 12,069 |
Contracted Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Services and Software |  |  | 4,838 |  |  |  | - |  |  |  | - |  |  |  | 4,430 |  |  |  | - |  |  |  | 9,268 |
Total Revenues |  | $ | 46,297 |  |  | $ | 36,125 |  |  | $ | - |  |  | $ | 13,806 |  |  | $ | 6,907 |  |  | $ | 103,135 |
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] |
Contract liabilities balance as of March 31, 2020 |  | $ | 7,217 |
Prior year liabilities recognized in revenues during the year ended March 31, 2021 |  |  | (4,368 | )
Contract liabilities added during the year ended March 31, 2021, net of revenues recognized |  |  | 6,145 |
Contract liabilities balance as of March 31, 2021 |  | $ | 8,994 |

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