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Note 4 - Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Cash paid for:    
Interest $ 2,838 $ 1,869
Income taxes, net of refunds 10,174 12,315
Non-cash investing and financing activities:    
Capital additions accrued but not yet paid 185 133
Operating lease right of use asset 2,492 289
Operating lease liabilities $ (2,548) $ (289)