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Note 17 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Inventory | $ 3.7 | $ 4.5
Compensation and employee benefits | 14.8 | 14.0
Warranty reserves | 2.2 | 2.3
Allowance for doubtful accounts and deferred revenue | 2.3 | 2.3
Operating lease liabilities | 8.2 | 11.2
Tax loss carryforwards | 7.7 | 9.6
Tax credit carryforwards | 4.5 | 3.6
Other | 0.7 | 2.5
Gross deferred tax assets | 44.1 | 50.0
Less: valuation allowance | (4.8) | (7.5)
Total net deferred tax assets | 39.3 | 42.5
Operating lease assets | 8.1 | 11.2
Fixed assets | 13.0 | 14.0
Goodwill and intangible assets | 23.0 | 41.5
Total deferred tax liabilities | 44.1 | 66.7
Net deferred tax liabilities | $ (4.8) | $ (24.2)

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