Consolidated Statements of Changes In Shareholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Cumulative Effect, Period of Adoption, Adjustment	[1]	Common Stock	Additional Paid-in Capital	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	[1]	Accumulated Other Comprehensive (Loss) Income	Treasury Stock
Balance (in shares) at Dec. 31, 2021				16,056,282
Balance at Dec. 31, 2021	$ 490,076			$ 16,056	$ 384,742	$ 91,043			$ 158	$ (1,923)
Net income	11,354					11,354
Total other comprehensive income, net of taxes	(5,104)								(5,104)
Common stock cash dividends declared - $0.20 per share	(3,191)					(3,191)
Riverview restricted stock adjustment	776				776
Employee Stock Purchase Plan (in shares)				1,710
Employee Stock Purchase Plan	46			$ 2	44
Director Stock Purchase Plan (in shares)				1,377
Director Stock Purchase Plan	36			$ 1	35
Restricted stock activity	168				168
Balance (in shares) at Mar. 31, 2022				16,059,369
Balance at Mar. 31, 2022	494,161			$ 16,059	385,765	99,206			(4,946)	(1,923)
Balance (in shares) at Dec. 31, 2022				16,094,486
Balance at Dec. 31, 2022	512,099	$ (11,548)		$ 16,094	386,987	133,114	$ (11,548)		(19,216)	(4,880)
Net income	11,227					11,227
Total other comprehensive income, net of taxes	1,842								1,842
Common stock cash dividends declared - $0.20 per share	(3,176)					(3,176)
Employee Stock Purchase Plan (in shares)				2,217
Employee Stock Purchase Plan	57			$ 2	55
Director Stock Purchase Plan (in shares)				1,651
Director Stock Purchase Plan	43			$ 2	41
Restricted stock activity	249				249
Balance (in shares) at Mar. 31, 2023				16,098,354
Balance at Mar. 31, 2023	$ 510,793			$ 16,098	$ 387,332	$ 129,617			$ (17,374)	$ (4,880)

[1] The Corporation adopted ASU 2016-13 "Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" effective January 1, 2023. See "Note 1 - Summary of Significant Accounting Policies" for further details.