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Note 4 - Supplemental Cash Flow Information (Tables) | 6 Months Ended
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Jun. 30, 2022
Notes Tables |
Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] |
|  | Six Months Ended |
|  | June 30, |
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Cash paid for: |  |  |  |  |  |  |  |
Interest |  | $ | 1,038 |  |  | $ | 26 |
Income taxes, net of refunds |  |  | 5,033 |  |  |  | 3,112 |
Non-cash investing and financing activities: |  |  |  |  |  |  |  |
Capital additions accrued but not yet paid |  | $ | 208 |  |  | $ | 202 |

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