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Note 6 - Contingencies (Details Textual) - USD ($) $ in Thousands | Jun. 30, 2023 | Jun. 30, 2022 | Dec. 31, 2021
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Business Combination, Contingent Consideration, Liability, Current |  | $ 1,304 | $ 4,507
Sutter's Mill [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Total |  | 2,900 |
Sutter's Mill [Member] | Minimum [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Current |  | 2,200 |
Sutter's Mill [Member] | Maximum [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Current |  | 4,700 |
Sutter's Mill [Member] | Forecast [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Current | $ 1,300 |  |
Guardian Products, Inc [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Total |  | 1,200 |
Guardian Products, Inc [Member] | Minimum [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Current |  | 1,500 |
Guardian Products, Inc [Member] | Maximum [Member] |  |  |
Business Combination, Contingent Consideration, Liability, Current |  | $ 2,400 |

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