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Note 8 - Income Taxes - Deferred Tax Assets (Liabilities) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Net operating loss carryforward $ 29,642 $ 26,113
Property and equipment (20,293) (19,138)
Disallowed interest carryforward 8,280 3,283
Valuation allowance (10,248) (4,592)
Stock-based compensation 311 171
Intangibles (435) (535)
Other 352 237
Deferred tax (liabilities) assets $ 7,609 $ 5,539