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Note 4 - Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Cash paid for:    
Interest $ 832 $ 314
Income taxes, net of refunds (50) 210
Non-cash investing and financing activities:    
Capital additions accrued but not yet paid 347 185
Operating lease right of use assets 1,524 289
Operating lease liabilities $ (1,560) $ (289)