Note19 - Accumulated Other Comprehensive Income (Loss) - Significant Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income tax benefit	$ 2,214	$ 1,435
Net income	10,171	6,748
Prior service costs	292	268
Actuarial losses	22	29
Net income before income taxes	12,385	8,183
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Unrealized gains and losses on available-for-sale securities	(245)	(687)
Income tax benefit	52	144
Net income	(194)	(543)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member]
Income tax benefit	(61)	(56)
Net income	37	(331)
Prior service costs	0	0
Actuarial losses	292	268
Net income before income taxes	$ 292	$ 268