Consolidated Statements of Comprehensive Income (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Unrealized gain (loss) on securities, pre-tax	$ 5,789	$ 5,120	$ 5,364
Reclassification adjustment for impairment charge, pre-tax	(2,760)	(1,103)	67
Net unrealized holding losses on securities transferred from available-for-sale to held-to-maturity, pre-tax	0	0	(9,362)
Amortization of net unrealized holding losses to income during the period, pre-tax	$ 3,018	$ 1,658	$ 137