Shareholders' Equity (Narrative) (Details)				11 Months Ended	12 Months Ended
	Jan. 27, 2020 shares	Oct. 01, 2019 shares	Aug. 16, 2019 shares	Dec. 31, 2020 USD ($) plan shares	Dec. 31, 2020 USD ($) plan shares	Dec. 31, 2019 USD ($) installment shares	Dec. 31, 2018 USD ($) shares
Minimum capital conservation buffer				0.025	0.025
Number of equity incentive plans | plan				2	2
Stock compensation expense					$ 995,000	$ 639,000	$ 718,000
Stock compensation expense not recorded				$ 0	0	0	0
Unrecognized expense related to restricted stock and cash entitlements				$ 2,046,000	2,046,000	2,022,000	2,172,000
Stock compensation expense, net of tax					$ 1,515,000	$ 1,427,000	$ 1,531,000
Common Stock | 2001 Purchase Plan
Common stock, authorized shares repurchase (in shares) | shares	409,184
Common Stock | 2020 Purchase Plan
Common stock, authorized shares repurchase (in shares) | shares	1,000,000
Common stock, percentage of Company's outstanding shares authorized for repurchase	4.00%
Common stock, shares repurchased (in shares) | shares				221,912
Stock Options
Stock option expiration period					10 years
Number of options granted (in shares) | shares					0	0	0
Stock compensation expense					$ 0	$ 0	$ 0
Nonqualified Stock Options
Stock option expiration period					20 years
Restricted Stock
Restricted stock as a percent of grant					66.67%	60.00%
Cash credit entitlements as a percent of grant					33.33%	40.00%
Number of installments | installment						3
Restricted Stock | Year One
Percentage vested					100.00%	33.30%
Restricted Stock | Year Two
Percentage vested					50.00%
Restricted Stock | Director [Member]
Percentage vested					100.00%
Employee Stock Purchase Plan
Stock compensation expense					$ 40,000	$ 23,000	39,000
Unrecognized expense related to restricted stock and cash entitlements				$ 0	0	0	0
Stock compensation expense, net of tax					$ 30,000	$ 1,000	$ 29,000
2009 LTIP Plan
Share-based compensation, number of shares available for future grants (in shares) | shares				0	0
2009 LTIP Plan | Restricted Stock | Year Two
Percentage vested						33.30%
2009 LTIP Plan | Restricted Stock | Year Three
Percentage vested					50.00%	33.30%
2019 LTIP Plan
Share-based compensation arrangement, number of shares authorized (in shares) | shares				1,000,000	1,000,000
2009 ESPP
Share-based compensation, number of shares available for future grants (in shares) | shares			750,000
Percentage of purchase price at offering date			95.00%
2019 ESPP
Share-based compensation, number of shares available for future grants (in shares) | shares		750,000
Percentage of purchase price at offering date		95.00%
Offering period		3 months
Bank
Minimum capital conservation buffer				0.025	0.025
Retained earnings available for payment of dividends to parent company without prior regulatory approval				$ 99,000,000	$ 99,000,000