Note 13 - Discontinued Operations - Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Operating revenues			$ 838	$ 2,014
Operating costs and expenses			(1,012)	(2,098)
Impairment loss			(40)	0
Loss from discontinued operations	$ 0	$ (25)	$ (214)	$ (84)

Amount of loss from loss from classification to held for sale from a discontinued operation attributable to the parent.

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Amount of operating expense attributable to disposal group, including, but not limited to, discontinued operation.

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Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation.

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