Note 15 - Unaudited Condensed Consolidated Balance Sheet Detail (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020
Beginning balance	$ 212	$ 191
Warranty reserve acquired in the acquisition of Global Cooling	3,353	0
Provision for warranties issued during the period	610	98
Settlements of warranty claims during the period	(761)	(83)
Ending Balance	$ 3,414	$ 206

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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