Consolidated Statements of Changes In Shareholders' Equity - USD ($) $ in Thousands		Total	Riverview [Member]	Previously Reported [Member]	Impact of Adoption of New Accounting Standard [Member]	[1]	Common Stock [Member]	Common Stock [Member] Riverview [Member]	Common Stock [Member] Previously Reported [Member]	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] Riverview [Member]	Additional Paid-in Capital [Member] Previously Reported [Member]	Retained Earnings [Member]	Retained Earnings [Member] Previously Reported [Member]	Retained Earnings [Member] Impact of Adoption of New Accounting Standard [Member]	[1]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Previously Reported [Member]	Treasury Stock [Member]
Balance at Dec. 31, 2018		$ 223,525		$ 223,209	$ 316		$ 8,460		$ 8,460	$ 177,565		$ 177,565	$ 39,878	$ 39,562	$ 316		$ (2,378)	$ (2,378)
Accounting Standards Update [Extensible Enumeration]		ASU 2016-02 [Member]					ASU 2016-02 [Member]			ASU 2016-02 [Member]			ASU 2016-02 [Member]				ASU 2016-02 [Member]		ASU 2016-02 [Member]
Net income		$ 17,701											$ 17,701
Total other comprehensive (loss) income, net of taxes		2,721															$ 2,721
Common stock dividends declared		(6,688)											(6,688)
Employee Stock Purchase Plan		134					$ 5			$ 129
Director Stock Purchase Plan		135					5			130
Restricted stock activity		346					11			335
Balance at Dec. 31, 2019		237,874					8,481			178,159			50,891				343		$ 0
Net income		26,209											26,209
Total other comprehensive (loss) income, net of taxes		(400)															(400)
Common stock dividends declared		(6,925)											(6,925)
Repurchased stock		(1,795)																	(1,795)
Employee Stock Purchase Plan		155					8			147
Director Stock Purchase Plan		156					8			148
Restricted stock activity		414					15			399
Balance at Dec. 31, 2020		255,688					8,512			178,853			70,175				(57)		(1,795)
Net income		29,319											29,319
Total other comprehensive (loss) income, net of taxes		215															215
Common stock dividends declared		(8,451)											(8,451)
Common shares issued through follow-on public offering (2,990,000 shares), net of underwriting discounts and offering expenses		70,238					2,990			67,248
Common stock issued to Riverview shareholders (4,519,776 shares) (b)	[2]		$ 142,192					$ 4,520			$ 137,672
Repurchased stock		(128)																	(128)
Employee Stock Purchase Plan		172					6			166
Director Stock Purchase Plan		135					5			130
Restricted stock activity		696					23			673
Balance at Dec. 31, 2021		$ 490,076					$ 16,056			$ 384,742			$ 91,043				$ 158		$ (1,923)

[1] Represents the impact of adopting Accounting Standard Update ASU 2016-02. See Note 23, Recent Accounting Pronouncements, to the consolidated financial statements for more information.

[2] Shares issued on November 30, 2021 as a result of the acquisition of Riverview Financial Corporation (“Riverview”).  See Note 4, Acquisition of Riverview Financial Corporation, to the consolidated financial statements for more information.