Note 6 - Goodwill and Intangible Assets - Goodwill Activity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018
Beginning balance			$ 8,205	$ 8,205
Impairment charge	$ (1,700)	$ (2,600)	(4,300)	0
Ending balance			$ 3,905	$ 8,205

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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