Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Income Taxes (Effective Tax Rate) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Amount
Income tax computed at statutory federal corporate income tax rate									$ 8,956	$ 13,725	$ 11,505
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount									0	0	(805)
Tax-exempt interest income									(668)	(659)	(554)
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Amount									(415)	(530)	(125)
Tax Cuts and Jobs Act, Income Tax Expense (Benefit)										0	(705)
Other, net									838	(228)	95
Income tax expense	$ 4,263	$ 2,636	$ 1,136	$ (156)	$ 2,767	$ 3,281	$ 2,238	$ 3,377	$ 7,879	$ 11,663	$ 8,686
Effective Income Tax Rate Reconciliation, Percent									18.50%	17.80%	15.90%
Rate
Federal income tax rate									21.00%	21.00%	21.00%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent									0.00%	0.00%	(1.50%)
Tax-exempt interest income									(1.60%)	(1.00%)	(1.00%)
Bank owned life insurance									(1.00%)	(0.80%)	(0.70%)
Effective Income Tax Rate Reconciliation, Tax Credit, Investment, Percent									(1.00%)	(0.80%)	(0.20%)
Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Percent										0	(0.013)
Other, net									2.10%	(0.40%)	0.20%
Captive insurance benefit
Amount
Bank owned life insurance									$ (412)
Rate
Bank owned life insurance									(1.00%)
Bank owned life insurance [Member]
Amount
Bank owned life insurance									$ (415)	$ (510)	$ (393)
Tax cuts and jobs act [Member]
Amount
Other, net									$ 0
Rate
Other, net									0.00%
Award Type [Member]
Amount
Other, net									$ (5)	$ (135)	$ (332)
Rate
Other, net									0.00%	(0.20%)	(0.60%)