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v3.23.1

Note 1 - Organization and Significant Accounting Policies (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Schedules of Concentration of Risk, by Risk Factor [Table Text Block] |
|  | Accounts Receivable |  |  | Revenue |
|  | March 31, |  |  | December 31, |  |  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |  |  | 2023 |  |  | 2022 |
Customer A |  |  | * |  |  |  | 15 | % |  |  | * |  |  |  | * |
Customer B |  |  | * |  |  |  | * |  |  |  | 14 | % |  |  | 20 | %
Customer C |  |  | 12 | % |  |  | 11 | % |  |  | 10 | % |  |  | 11 | %
Revenue from External Customers by Products and Services [Table Text Block] |
|  | Three Months Ended March 31, |
Product revenue concentration |  | 2023 |  |  | 2022 |
CryoStor |  |  | 44 | % |  |  | 35 | %
780XLE Freezer |  |  | 14 | % |  |  | 20 | %
|  | Three Months Ended |
|  | March 31, |
Revenue by customers’ geographic locations |  | 2023 |  |  | 2022 |
United States |  |  | 79 | % |  |  | 79 | %
Europe, Middle East, Africa (EMEA) |  |  | 18 | % |  |  | 16 | %
Canada |  |  | 1 | % |  |  | 1 | %
Other |  |  | 2 | % |  |  | 4 | %
Total revenue |  |  | 100 | % |  |  | 100 | %

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