Note 14 - Income Taxes - Components of the Income Tax Provision (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Federal	$ (100)	$ 88	$ 447
State	86	149	708
Components of the Income Tax Provision, Current Total	(14)	237	1,155
Federal	(2,448)	(698)	148
State	2,125	(438)	(413)
Components of the Income Tax Provision, Deferred Total	(323)	(1,136)	(265)
Income tax (benefit) expense	$ (337)	$ (899)	$ 890