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Note 10 - Accrued Liabilities - Summary of Accrued Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Salaries, wages, employment taxes and withholdings $ 1,548 $ 1,353
Employee benefit plans 861 1,216
Accrued professional fees 697 695
Income, property and other taxes 176 253
Contract liabilities – short term 15,013 6,816
Deferred gain from sale-leaseback 286 296
Other 1,065 1,340
Accrued liabilities $ 19,646 $ 11,969