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Note 5 - Fair Value Measurements - Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 21, 2021 | Oct. 06, 2021
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Interest Rate Swap [Member] |  |  |
Interest rate swap | $ 388 |  |
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member] |  |  |
Interest rate swap | 0 |  |
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member] |  |  |
Interest rate swap | 388 |  |
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member] |  |  |
Interest rate swap | 0 |  |
Z-Sciences [Member] |  |  |
Contingent consideration liability | 179 |  | $ 200
Z-Sciences [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Contingent consideration liability | 0 |  |
Z-Sciences [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Contingent consideration liability | 0 |  |
Z-Sciences [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Contingent consideration liability | 179 |  |
Acculogic [Member] |  |  |
Contingent consideration liability | 1,435 | $ 1,430 |
Acculogic [Member] | Fair Value, Inputs, Level 1 [Member] |  |  |
Contingent consideration liability | 0 |  |
Acculogic [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Contingent consideration liability | 0 |  |
Acculogic [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |
Contingent consideration liability | $ 1,435 |  |

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