Note 16 - Accumulated Other Comprehensive Income - Components of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net realized gains	$ 54	$ 51
(Loss) income before income tax benefit	(2,913)	474
Income tax benefit	(409)	(425)
Net (loss) income	(2,504)	899
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net (loss) income	(1)	(12)
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Net realized gains	(1)	(12)
Other-than-temporary impairment loss	0	0
(Loss) income before income tax benefit	(1)	(12)
Income tax benefit	$ 0	$ 0