Note 13 - Consolidated Balance Sheet Detail - Warranty Reserve Liability (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Beginning balance	$ 212	$ 191
Warranty reserve acquired in the acquisition of Global Cooling	3,353	0
Provision for warranties	9,845	137
Settlements of warranty claims	(4,012)	(116)
Ending Balance	$ 9,398	$ 212

Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers.

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