Note 5 - Income Taxes - Summary of Income Tax Provision (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal	$ 552	$ 131	$ (2,006)
State	23	84	(2)
Total Current	575	215	(2,008)
Federal	(959)	(704)	(13)
State	428	333	(326)
Total Deferred	(531)	(371)	(339)
Income Tax Provision	$ 44	$ (156)	$ (2,347)