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Note 6 - Acquisitions (Tables) | 12 Months Ended
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Dec. 31, 2021
Notes Tables |
Schedule of Business Acquisitions, by Acquisition [Table Text Block] |
Acquiree |  | Acquisition Date |  | Purchase Consideration |  |  | Purchased Intangible Assets |  |  | Goodwill |
|  |  |  | (in thousands) |
TotalCloud |  | August 19, 2021 |  | $ | 1,200 |  |  | $ | 1,200 |  |  | $ | — |
Spell security |  | July 24, 2020 |  | $ | 1,500 |  |  | $ | 1,500 |  |  | $ | — |
Adya |  | January 10, 2019 |  | $ | 1,000 |  |  | $ | 900 |  |  | $ | 100 |

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